forked from ADLINK-IST/opensplice-tools
/
tglib.c
1973 lines (1830 loc) · 71.3 KB
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tglib.c
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/* Copyright 2017 PrismTech Limited
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
#include <stdio.h>
#include <ctype.h>
#include <stdint.h>
#include <inttypes.h>
#include <dds_dcps.h>
#include "common.h"
#include "tglib.h"
#include "porting.h"
static const char *mdParticipantBuiltinTopicData = "<MetaData version=\"1.0.0\"><Module name=\"DDS\"><TypeDef name=\"BuiltinTopicKey_t\"><Array size=\"3\"><Long/></Array></TypeDef><TypeDef name=\"octSeq\"><Sequence><Octet/></Sequence></TypeDef><Struct name=\"UserDataQosPolicy\"><Member name=\"value\"><Type name=\"octSeq\"/></Member></Struct><Struct name=\"ParticipantBuiltinTopicData\"><Member name=\"key\"><Type name=\"BuiltinTopicKey_t\"/></Member><Member name=\"user_data\"><Type name=\"UserDataQosPolicy\"/></Member></Struct></Module></MetaData>";
static const char *mdTopicBuiltinTopicData = "<MetaData version=\"1.0.0\"><Module name=\"DDS\"><TypeDef name=\"BuiltinTopicKey_t\"><Array size=\"3\"><Long/></Array></TypeDef><Enum name=\"DurabilityQosPolicyKind\"><Element name=\"VOLATILE_DURABILITY_QOS\" value=\"0\"/><Element name=\"TRANSIENT_LOCAL_DURABILITY_QOS\" value=\"1\"/><Element name=\"TRANSIENT_DURABILITY_QOS\" value=\"2\"/><Element name=\"PERSISTENT_DURABILITY_QOS\" value=\"3\"/></Enum><Struct name=\"Duration_t\"><Member name=\"sec\"><Long/></Member><Member name=\"nanosec\"><ULong/></Member></Struct><Enum name=\"HistoryQosPolicyKind\"><Element name=\"KEEP_LAST_HISTORY_QOS\" value=\"0\"/><Element name=\"KEEP_ALL_HISTORY_QOS\" value=\"1\"/></Enum><Enum name=\"LivelinessQosPolicyKind\"><Element name=\"AUTOMATIC_LIVELINESS_QOS\" value=\"0\"/><Element name=\"MANUAL_BY_PARTICIPANT_LIVELINESS_QOS\" value=\"1\"/><Element name=\"MANUAL_BY_TOPIC_LIVELINESS_QOS\" value=\"2\"/></Enum><Enum name=\"ReliabilityQosPolicyKind\"><Element name=\"BEST_EFFORT_RELIABILITY_QOS\" value=\"0\"/><Element name=\"RELIABLE_RELIABILITY_QOS\" value=\"1\"/></Enum><Struct name=\"TransportPriorityQosPolicy\"><Member name=\"value\"><Long/></Member></Struct><Enum name=\"DestinationOrderQosPolicyKind\"><Element name=\"BY_RECEPTION_TIMESTAMP_DESTINATIONORDER_QOS\" value=\"0\"/><Element name=\"BY_SOURCE_TIMESTAMP_DESTINATIONORDER_QOS\" value=\"1\"/></Enum><Struct name=\"ResourceLimitsQosPolicy\"><Member name=\"max_samples\"><Long/></Member><Member name=\"max_instances\"><Long/></Member><Member name=\"max_samples_per_instance\"><Long/></Member></Struct><Enum name=\"OwnershipQosPolicyKind\"><Element name=\"SHARED_OWNERSHIP_QOS\" value=\"0\"/><Element name=\"EXCLUSIVE_OWNERSHIP_QOS\" value=\"1\"/></Enum><TypeDef name=\"octSeq\"><Sequence><Octet/></Sequence></TypeDef><Struct name=\"DurabilityQosPolicy\"><Member name=\"kind\"><Type name=\"DurabilityQosPolicyKind\"/></Member></Struct><Struct name=\"LifespanQosPolicy\"><Member name=\"duration\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"LatencyBudgetQosPolicy\"><Member name=\"duration\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"DeadlineQosPolicy\"><Member name=\"period\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"HistoryQosPolicy\"><Member name=\"kind\"><Type name=\"HistoryQosPolicyKind\"/></Member><Member name=\"depth\"><Long/></Member></Struct><Struct name=\"DurabilityServiceQosPolicy\"><Member name=\"service_cleanup_delay\"><Type name=\"Duration_t\"/></Member><Member name=\"history_kind\"><Type name=\"HistoryQosPolicyKind\"/></Member><Member name=\"history_depth\"><Long/></Member><Member name=\"max_samples\"><Long/></Member><Member name=\"max_instances\"><Long/></Member><Member name=\"max_samples_per_instance\"><Long/></Member></Struct><Struct name=\"LivelinessQosPolicy\"><Member name=\"kind\"><Type name=\"LivelinessQosPolicyKind\"/></Member><Member name=\"lease_duration\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"ReliabilityQosPolicy\"><Member name=\"kind\"><Type name=\"ReliabilityQosPolicyKind\"/></Member><Member name=\"max_blocking_time\"><Type name=\"Duration_t\"/></Member><Member name=\"synchronous\"><Boolean/></Member></Struct><Struct name=\"DestinationOrderQosPolicy\"><Member name=\"kind\"><Type name=\"DestinationOrderQosPolicyKind\"/></Member></Struct><Struct name=\"OwnershipQosPolicy\"><Member name=\"kind\"><Type name=\"OwnershipQosPolicyKind\"/></Member></Struct><Struct name=\"TopicDataQosPolicy\"><Member name=\"value\"><Type name=\"octSeq\"/></Member></Struct><Struct name=\"TopicBuiltinTopicData\"><Member name=\"key\"><Type name=\"BuiltinTopicKey_t\"/></Member><Member name=\"name\"><String/></Member><Member name=\"type_name\"><String/></Member><Member name=\"durability\"><Type name=\"DurabilityQosPolicy\"/></Member><Member name=\"durability_service\"><Type name=\"DurabilityServiceQosPolicy\"/></Member><Member name=\"deadline\"><Type name=\"DeadlineQosPolicy\"/></Member><Member name=\"latency_budget\"><Type name=\"LatencyBudgetQosPolicy\"/></Member><Member name=\"liveliness\"><Type name=\"LivelinessQosPolicy\"/></Member><Member name=\"reliability\"><Type name=\"ReliabilityQosPolicy\"/></Member><Member name=\"transport_priority\"><Type name=\"TransportPriorityQosPolicy\"/></Member><Member name=\"lifespan\"><Type name=\"LifespanQosPolicy\"/></Member><Member name=\"destination_order\"><Type name=\"DestinationOrderQosPolicy\"/></Member><Member name=\"history\"><Type name=\"HistoryQosPolicy\"/></Member><Member name=\"resource_limits\"><Type name=\"ResourceLimitsQosPolicy\"/></Member><Member name=\"ownership\"><Type name=\"OwnershipQosPolicy\"/></Member><Member name=\"topic_data\"><Type name=\"TopicDataQosPolicy\"/></Member></Struct></Module></MetaData>";
static const char *mdPublicationBuiltinTopicData = "<MetaData version=\"1.0.0\"><Module name=\"DDS\"><TypeDef name=\"BuiltinTopicKey_t\"><Array size=\"3\"><Long/></Array></TypeDef><Enum name=\"DurabilityQosPolicyKind\"><Element name=\"VOLATILE_DURABILITY_QOS\" value=\"0\"/><Element name=\"TRANSIENT_LOCAL_DURABILITY_QOS\" value=\"1\"/><Element name=\"TRANSIENT_DURABILITY_QOS\" value=\"2\"/><Element name=\"PERSISTENT_DURABILITY_QOS\" value=\"3\"/></Enum><Struct name=\"Duration_t\"><Member name=\"sec\"><Long/></Member><Member name=\"nanosec\"><ULong/></Member></Struct><Enum name=\"LivelinessQosPolicyKind\"><Element name=\"AUTOMATIC_LIVELINESS_QOS\" value=\"0\"/><Element name=\"MANUAL_BY_PARTICIPANT_LIVELINESS_QOS\" value=\"1\"/><Element name=\"MANUAL_BY_TOPIC_LIVELINESS_QOS\" value=\"2\"/></Enum><Enum name=\"ReliabilityQosPolicyKind\"><Element name=\"BEST_EFFORT_RELIABILITY_QOS\" value=\"0\"/><Element name=\"RELIABLE_RELIABILITY_QOS\" value=\"1\"/></Enum><Enum name=\"DestinationOrderQosPolicyKind\"><Element name=\"BY_RECEPTION_TIMESTAMP_DESTINATIONORDER_QOS\" value=\"0\"/><Element name=\"BY_SOURCE_TIMESTAMP_DESTINATIONORDER_QOS\" value=\"1\"/></Enum><TypeDef name=\"octSeq\"><Sequence><Octet/></Sequence></TypeDef><Enum name=\"OwnershipQosPolicyKind\"><Element name=\"SHARED_OWNERSHIP_QOS\" value=\"0\"/><Element name=\"EXCLUSIVE_OWNERSHIP_QOS\" value=\"1\"/></Enum><Struct name=\"OwnershipStrengthQosPolicy\"><Member name=\"value\"><Long/></Member></Struct><Enum name=\"PresentationQosPolicyAccessScopeKind\"><Element name=\"INSTANCE_PRESENTATION_QOS\" value=\"0\"/><Element name=\"TOPIC_PRESENTATION_QOS\" value=\"1\"/><Element name=\"GROUP_PRESENTATION_QOS\" value=\"2\"/></Enum><TypeDef name=\"StringSeq\"><Sequence><String/></Sequence></TypeDef><Struct name=\"DurabilityQosPolicy\"><Member name=\"kind\"><Type name=\"DurabilityQosPolicyKind\"/></Member></Struct><Struct name=\"LifespanQosPolicy\"><Member name=\"duration\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"LatencyBudgetQosPolicy\"><Member name=\"duration\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"DeadlineQosPolicy\"><Member name=\"period\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"LivelinessQosPolicy\"><Member name=\"kind\"><Type name=\"LivelinessQosPolicyKind\"/></Member><Member name=\"lease_duration\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"ReliabilityQosPolicy\"><Member name=\"kind\"><Type name=\"ReliabilityQosPolicyKind\"/></Member><Member name=\"max_blocking_time\"><Type name=\"Duration_t\"/></Member><Member name=\"synchronous\"><Boolean/></Member></Struct><Struct name=\"DestinationOrderQosPolicy\"><Member name=\"kind\"><Type name=\"DestinationOrderQosPolicyKind\"/></Member></Struct><Struct name=\"GroupDataQosPolicy\"><Member name=\"value\"><Type name=\"octSeq\"/></Member></Struct><Struct name=\"TopicDataQosPolicy\"><Member name=\"value\"><Type name=\"octSeq\"/></Member></Struct><Struct name=\"UserDataQosPolicy\"><Member name=\"value\"><Type name=\"octSeq\"/></Member></Struct><Struct name=\"OwnershipQosPolicy\"><Member name=\"kind\"><Type name=\"OwnershipQosPolicyKind\"/></Member></Struct><Struct name=\"PresentationQosPolicy\"><Member name=\"access_scope\"><Type name=\"PresentationQosPolicyAccessScopeKind\"/></Member><Member name=\"coherent_access\"><Boolean/></Member><Member name=\"ordered_access\"><Boolean/></Member></Struct><Struct name=\"PartitionQosPolicy\"><Member name=\"name\"><Type name=\"StringSeq\"/></Member></Struct><Struct name=\"PublicationBuiltinTopicData\"><Member name=\"key\"><Type name=\"BuiltinTopicKey_t\"/></Member><Member name=\"participant_key\"><Type name=\"BuiltinTopicKey_t\"/></Member><Member name=\"topic_name\"><String/></Member><Member name=\"type_name\"><String/></Member><Member name=\"durability\"><Type name=\"DurabilityQosPolicy\"/></Member><Member name=\"deadline\"><Type name=\"DeadlineQosPolicy\"/></Member><Member name=\"latency_budget\"><Type name=\"LatencyBudgetQosPolicy\"/></Member><Member name=\"liveliness\"><Type name=\"LivelinessQosPolicy\"/></Member><Member name=\"reliability\"><Type name=\"ReliabilityQosPolicy\"/></Member><Member name=\"lifespan\"><Type name=\"LifespanQosPolicy\"/></Member><Member name=\"destination_order\"><Type name=\"DestinationOrderQosPolicy\"/></Member><Member name=\"user_data\"><Type name=\"UserDataQosPolicy\"/></Member><Member name=\"ownership\"><Type name=\"OwnershipQosPolicy\"/></Member><Member name=\"ownership_strength\"><Type name=\"OwnershipStrengthQosPolicy\"/></Member><Member name=\"presentation\"><Type name=\"PresentationQosPolicy\"/></Member><Member name=\"partition\"><Type name=\"PartitionQosPolicy\"/></Member><Member name=\"topic_data\"><Type name=\"TopicDataQosPolicy\"/></Member><Member name=\"group_data\"><Type name=\"GroupDataQosPolicy\"/></Member></Struct></Module></MetaData>";
static const char *mdSubscriptionBuiltinTopicData = "<MetaData version=\"1.0.0\"><Module name=\"DDS\"><TypeDef name=\"BuiltinTopicKey_t\"><Array size=\"3\"><Long/></Array></TypeDef><Enum name=\"DurabilityQosPolicyKind\"><Element name=\"VOLATILE_DURABILITY_QOS\" value=\"0\"/><Element name=\"TRANSIENT_LOCAL_DURABILITY_QOS\" value=\"1\"/><Element name=\"TRANSIENT_DURABILITY_QOS\" value=\"2\"/><Element name=\"PERSISTENT_DURABILITY_QOS\" value=\"3\"/></Enum><Struct name=\"Duration_t\"><Member name=\"sec\"><Long/></Member><Member name=\"nanosec\"><ULong/></Member></Struct><Enum name=\"LivelinessQosPolicyKind\"><Element name=\"AUTOMATIC_LIVELINESS_QOS\" value=\"0\"/><Element name=\"MANUAL_BY_PARTICIPANT_LIVELINESS_QOS\" value=\"1\"/><Element name=\"MANUAL_BY_TOPIC_LIVELINESS_QOS\" value=\"2\"/></Enum><Enum name=\"ReliabilityQosPolicyKind\"><Element name=\"BEST_EFFORT_RELIABILITY_QOS\" value=\"0\"/><Element name=\"RELIABLE_RELIABILITY_QOS\" value=\"1\"/></Enum><Enum name=\"OwnershipQosPolicyKind\"><Element name=\"SHARED_OWNERSHIP_QOS\" value=\"0\"/><Element name=\"EXCLUSIVE_OWNERSHIP_QOS\" value=\"1\"/></Enum><Enum name=\"DestinationOrderQosPolicyKind\"><Element name=\"BY_RECEPTION_TIMESTAMP_DESTINATIONORDER_QOS\" value=\"0\"/><Element name=\"BY_SOURCE_TIMESTAMP_DESTINATIONORDER_QOS\" value=\"1\"/></Enum><TypeDef name=\"octSeq\"><Sequence><Octet/></Sequence></TypeDef><Enum name=\"PresentationQosPolicyAccessScopeKind\"><Element name=\"INSTANCE_PRESENTATION_QOS\" value=\"0\"/><Element name=\"TOPIC_PRESENTATION_QOS\" value=\"1\"/><Element name=\"GROUP_PRESENTATION_QOS\" value=\"2\"/></Enum><TypeDef name=\"StringSeq\"><Sequence><String/></Sequence></TypeDef><Struct name=\"DurabilityQosPolicy\"><Member name=\"kind\"><Type name=\"DurabilityQosPolicyKind\"/></Member></Struct><Struct name=\"TimeBasedFilterQosPolicy\"><Member name=\"minimum_separation\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"LatencyBudgetQosPolicy\"><Member name=\"duration\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"DeadlineQosPolicy\"><Member name=\"period\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"LivelinessQosPolicy\"><Member name=\"kind\"><Type name=\"LivelinessQosPolicyKind\"/></Member><Member name=\"lease_duration\"><Type name=\"Duration_t\"/></Member></Struct><Struct name=\"ReliabilityQosPolicy\"><Member name=\"kind\"><Type name=\"ReliabilityQosPolicyKind\"/></Member><Member name=\"max_blocking_time\"><Type name=\"Duration_t\"/></Member><Member name=\"synchronous\"><Boolean/></Member></Struct><Struct name=\"OwnershipQosPolicy\"><Member name=\"kind\"><Type name=\"OwnershipQosPolicyKind\"/></Member></Struct><Struct name=\"DestinationOrderQosPolicy\"><Member name=\"kind\"><Type name=\"DestinationOrderQosPolicyKind\"/></Member></Struct><Struct name=\"GroupDataQosPolicy\"><Member name=\"value\"><Type name=\"octSeq\"/></Member></Struct><Struct name=\"TopicDataQosPolicy\"><Member name=\"value\"><Type name=\"octSeq\"/></Member></Struct><Struct name=\"UserDataQosPolicy\"><Member name=\"value\"><Type name=\"octSeq\"/></Member></Struct><Struct name=\"PresentationQosPolicy\"><Member name=\"access_scope\"><Type name=\"PresentationQosPolicyAccessScopeKind\"/></Member><Member name=\"coherent_access\"><Boolean/></Member><Member name=\"ordered_access\"><Boolean/></Member></Struct><Struct name=\"PartitionQosPolicy\"><Member name=\"name\"><Type name=\"StringSeq\"/></Member></Struct><Struct name=\"SubscriptionBuiltinTopicData\"><Member name=\"key\"><Type name=\"BuiltinTopicKey_t\"/></Member><Member name=\"participant_key\"><Type name=\"BuiltinTopicKey_t\"/></Member><Member name=\"topic_name\"><String/></Member><Member name=\"type_name\"><String/></Member><Member name=\"durability\"><Type name=\"DurabilityQosPolicy\"/></Member><Member name=\"deadline\"><Type name=\"DeadlineQosPolicy\"/></Member><Member name=\"latency_budget\"><Type name=\"LatencyBudgetQosPolicy\"/></Member><Member name=\"liveliness\"><Type name=\"LivelinessQosPolicy\"/></Member><Member name=\"reliability\"><Type name=\"ReliabilityQosPolicy\"/></Member><Member name=\"ownership\"><Type name=\"OwnershipQosPolicy\"/></Member><Member name=\"destination_order\"><Type name=\"DestinationOrderQosPolicy\"/></Member><Member name=\"user_data\"><Type name=\"UserDataQosPolicy\"/></Member><Member name=\"time_based_filter\"><Type name=\"TimeBasedFilterQosPolicy\"/></Member><Member name=\"presentation\"><Type name=\"PresentationQosPolicy\"/></Member><Member name=\"partition\"><Type name=\"PartitionQosPolicy\"/></Member><Member name=\"topic_data\"><Type name=\"TopicDataQosPolicy\"/></Member><Member name=\"group_data\"><Type name=\"GroupDataQosPolicy\"/></Member></Struct></Module></MetaData>";
union tokenval {
int64_t i;
uint64_t ui;
char ch;
double d;
char *str;
};
enum tokenkind {
TOK_ERROR,
TOK_EOF,
TOK_INT,
TOK_FLOAT,
TOK_CHAR,
TOK_STRING,
TOK_SYMBOL,
TOK_COMMA,
TOK_DOT,
TOK_EQUALS,
TOK_LBRACE,
TOK_RBRACE,
TOK_COLON,
TOK_LBRACKET,
TOK_RBRACKET,
TOK_LITERAL
};
struct token {
const char *src;
enum tokenkind kind;
union tokenval val;
};
#define TOKEN_INIT(src) { (src), TOK_ERROR, { .i = 0 } }
struct lexer {
int error;
int have_token;
struct token token;
const char *srcstart;
const char *src;
};
enum tgkind {
TG_BOOLEAN,
TG_CHAR,
TG_INT,
TG_UINT,
TG_FLOAT,
TG_ENUM,
TG_TIME,
TG_STRING,
TG_SEQUENCE,
TG_ARRAY,
TG_STRUCT,
TG_UNION,
TG_TYPEDEF,
TG_PREDECL
};
struct tgtype {
char *name; /* or null if anonymous */
size_t size; /* size in memory, also discriminates between widths of prim types */
size_t align;
enum tgkind kind;
union tgtype_u {
struct tgtype_td {
struct tgtype *type;
} td;
struct tgtype_S {
unsigned n;
struct tgtype_Sms {
size_t off;
char *name;
struct tgtype *type;
} *ms;
} S;
struct tgtype_str {
unsigned maxn;
} str;
struct tgtype_seq {
unsigned maxn;
struct tgtype *type;
} seq;
struct tgtype_ary {
unsigned n;
struct tgtype *type;
} ary;
struct tgtype_e {
unsigned n;
struct tgtype_ems {
int v;
char *name;
} *ms;
} e;
struct tgtype_U {
struct tgtype *dtype;
size_t off;
unsigned n;
int msidxdef;
struct tgtype_Ums {
char *name;
struct tgtype *type;
} *ms;
unsigned nlab;
struct tgtype_lab {
uint64_t val;
int msidx;
} *labs;
} U;
} u;
};
struct dictnode {
struct dictnode *next;
const char *name; /* aliases type->name */
struct tgtype *type;
};
struct parse_context {
struct dictnode *dict;
char *nameprefix;
int depth;
};
struct parse_arg {
struct parse_context *context;
struct tgtype *type;
};
#if PRE_V6_5
typedef DDS_sequence_octet dds_seq_t;
#else
typedef struct DDS_sequence_s dds_seq_t;
#endif
static void init_lexer(struct token *tok, struct lexer *l, const char *src);
static enum tokenkind scantoken(struct token *tok, struct lexer *l);
static void freetoken(struct token *tok);
static int scanerror(struct token *tok, struct lexer *l, const char *fmt, ...);
static int casttoint(struct token *tok, struct lexer *l);
struct alignof_int16_t { char c; int16_t x; };
struct alignof_int32_t { char c; int32_t x; };
struct alignof_int64_t { char c; int64_t x; };
struct alignof_float { char c; float x; };
struct alignof_double { char c; double x; };
struct alignof_ptr { char c; void *x; };
struct alignof_dds_seq { char c; dds_seq_t x; };
#define alignof(t) offsetof (struct alignof_##t, x)
static const char *typekindstr(DDS_TypeElementKind kind)
{
switch (kind)
{
case DDS_TYPE_ELEMENT_KIND_MODULE: return "module";
case DDS_TYPE_ELEMENT_KIND_STRUCT: return "struct";
case DDS_TYPE_ELEMENT_KIND_MEMBER: return "member";
case DDS_TYPE_ELEMENT_KIND_UNION: return "union";
case DDS_TYPE_ELEMENT_KIND_UNIONCASE: return "unioncase";
case DDS_TYPE_ELEMENT_KIND_UNIONSWITCH: return "unionswitch";
case DDS_TYPE_ELEMENT_KIND_UNIONLABEL: return "unionlabel";
case DDS_TYPE_ELEMENT_KIND_TYPEDEF: return "typedef";
case DDS_TYPE_ELEMENT_KIND_ENUM: return "enum";
case DDS_TYPE_ELEMENT_KIND_ENUMLABEL: return "enumlabel";
case DDS_TYPE_ELEMENT_KIND_TYPE: return "type";
case DDS_TYPE_ELEMENT_KIND_ARRAY: return "array";
case DDS_TYPE_ELEMENT_KIND_SEQUENCE: return "sequence";
case DDS_TYPE_ELEMENT_KIND_STRING: return "string";
case DDS_TYPE_ELEMENT_KIND_CHAR: return "char";
case DDS_TYPE_ELEMENT_KIND_BOOLEAN: return "boolean";
case DDS_TYPE_ELEMENT_KIND_OCTET: return "octet";
case DDS_TYPE_ELEMENT_KIND_SHORT: return "short";
case DDS_TYPE_ELEMENT_KIND_USHORT: return "unsigned short";
case DDS_TYPE_ELEMENT_KIND_LONG: return "long";
case DDS_TYPE_ELEMENT_KIND_ULONG: return "unsigned long";
case DDS_TYPE_ELEMENT_KIND_LONGLONG: return "long long";
case DDS_TYPE_ELEMENT_KIND_ULONGLONG: return "unsigned long long";
case DDS_TYPE_ELEMENT_KIND_FLOAT: return "float";
case DDS_TYPE_ELEMENT_KIND_DOUBLE: return "double";
case DDS_TYPE_ELEMENT_KIND_TIME: return "time";
case DDS_TYPE_ELEMENT_KIND_UNIONLABELDEFAULT: return "unionlabeldefault";
case DDS_TYPE_ELEMENT_KIND_FORWARDDECLARATION: return "forwarddeclaration";
}
return NULL;
}
const char *tgkindstr(enum tgkind kind)
{
switch (kind)
{
case TG_BOOLEAN: return "boolean";
case TG_CHAR: return "char";
case TG_INT: return "int";
case TG_UINT: return "uint";
case TG_FLOAT: return "float";
case TG_ENUM: return "enum";
case TG_TIME: return "time";
case TG_STRING: return "string";
case TG_SEQUENCE: return "sequence";
case TG_ARRAY: return "array";
case TG_STRUCT: return "struct";
case TG_UNION: return "union";
case TG_TYPEDEF: return "typedef";
case TG_PREDECL: return "predecl";
}
return "?";
}
static char *fullname(struct parse_arg *arg, const char *name)
{
if (name == NULL)
return NULL;
else
{
size_t sz = strlen(arg->context->nameprefix) + 2 + strlen(name) + 1;
char *x = malloc(sz);
(void) snprintf(x, sz, "%s::%s", arg->context->nameprefix, name);
return x;
}
}
static struct dictnode *lookupdictnode1(struct dictnode *dict, const char *name)
{
struct dictnode *n = dict;
while (n && strcmp(n->name, name) != 0)
n = n->next;
return n;
}
static struct dictnode *lookupdictnode(struct parse_arg *arg, const char *name)
{
if (strncmp(name, "::", 2) == 0)
return lookupdictnode1(arg->context->dict, name);
else
{
char *prefix = strdup(arg->context->nameprefix);
size_t sz = strlen(prefix) + 2 + strlen(name) + 1;
char *tmp = malloc(sz);
struct dictnode *n;
(void) snprintf(tmp, sz, "%s::%s", prefix, name);
while((n = lookupdictnode1(arg->context->dict, tmp)) == NULL && *prefix)
{
char *x = strrchr(prefix, ':');
assert(x > prefix && x[-1] == ':');
x[-1] = 0;
(void) snprintf(tmp, sz, "%s::%s", prefix, name);
}
free(prefix);
free(tmp);
return n;
}
}
static struct tgtype *lookupname(struct parse_arg *arg, const char *name)
{
struct dictnode *n;
if ((n = lookupdictnode (arg, name)) == NULL)
return NULL;
return n->type;
}
static void addtodict(struct parse_arg *arg, const char *name, struct tgtype *t)
{
if (name)
{
assert(t->name == NULL);
struct dictnode *n = lookupdictnode (arg, name);
if (n == NULL)
{
t->name = strdup(name);
n = malloc(sizeof(*n));
n->name = fullname(arg, name);
n->type = t;
n->next = arg->context->dict;
arg->context->dict = n;
}
else
{
assert (n->type->kind == TG_PREDECL);
*n->type = *t;
// leak
}
}
}
static void pushmodule(struct parse_arg *arg, const char *name)
{
size_t sz = strlen(arg->context->nameprefix) + 2 + strlen(name) + 1;
char *np = malloc(sz);
(void) snprintf(np, sz, "%s::%s", arg->context->nameprefix, name);
free(arg->context->nameprefix);
arg->context->nameprefix = np;
}
static void popmodule(struct parse_arg *arg)
{
char *x = strrchr(arg->context->nameprefix, ':');
assert(x > arg->context->nameprefix && x[-1] == ':');
x[-1] = 0;
}
static DDS_boolean parse_type_cb(DDS_TypeElementKind kind, const DDS_string name, const DDS_TypeAttributeSeq *attrs, DDS_TypeParserHandle handle __attribute__ ((unused)), void *varg);
static struct tgtype *newtgtype(enum tgkind kind, size_t sz /* 0 if still to be computed */, size_t align)
{
struct tgtype *t = malloc(sizeof (*t));
memset(t, 0, sizeof (*t));
t->kind = kind;
t->size = sz;
t->align = align;
return t;
}
static size_t alignup (size_t pos, size_t align)
{
assert((align & -align) == align);
return (pos + align - 1) & -align;
}
static struct tgtype *detypedef (const struct tgtype *t)
{
while (t->kind == TG_TYPEDEF)
t = t->u.td.type;
return (struct tgtype *) t;
}
static DDS_boolean parse_struct_cb(DDS_TypeElementKind kind, const DDS_string name, const DDS_TypeAttributeSeq *attrs __attribute__ ((unused)), DDS_TypeParserHandle handle, void *varg)
{
struct parse_arg *arg = varg;
struct parse_arg subarg = { .context = arg->context, .type = NULL };
struct tgtype *t = arg->type;
struct tgtype_S *ts = &t->u.S;
assert(kind == DDS_TYPE_ELEMENT_KIND_MEMBER);
ts->ms = realloc(ts->ms, ++ts->n * sizeof(*ts->ms));
arg->context->depth++;
(void) DDS_TypeSupport_walk_type_description(handle, parse_type_cb, &subarg);
arg->context->depth--;
assert(subarg.type != NULL);
ts->ms[ts->n-1].off = alignup (t->size, subarg.type->align);
ts->ms[ts->n-1].name = strdup(name);
ts->ms[ts->n-1].type = subarg.type;
t->size = ts->ms[ts->n-1].off + subarg.type->size;
if (t->align < subarg.type->align)
t->align = subarg.type->align;
return 1;
}
static DDS_boolean parse_enum_cb(DDS_TypeElementKind kind, const DDS_string name, const DDS_TypeAttributeSeq *attrs, DDS_TypeParserHandle handle __attribute__ ((unused)), void *varg)
{
struct parse_arg *arg = varg;
assert(kind == DDS_TYPE_ELEMENT_KIND_ENUMLABEL);
assert(attrs->_length == 1);
assert(attrs->_buffer[0].value._d == DDS_TYPE_ATTRIBUTE_KIND_NUMBER);
arg->type->u.e.ms = realloc(arg->type->u.e.ms, ++arg->type->u.e.n * sizeof(*arg->type->u.e.ms));
arg->type->u.e.ms[arg->type->u.e.n-1].v = attrs->_buffer[0].value._u.nvalue;
arg->type->u.e.ms[arg->type->u.e.n-1].name = strdup(name);
return 1;
}
static DDS_boolean parse_unioncase_cb(DDS_TypeElementKind kind, const DDS_string name, const DDS_TypeAttributeSeq *attrs, DDS_TypeParserHandle handle, void *varg)
{
struct parse_arg *arg = varg;
struct tgtype *t = arg->type;
struct tgtype_U *tu = &t->u.U;
switch (kind)
{
case DDS_TYPE_ELEMENT_KIND_UNIONLABELDEFAULT:
tu->msidxdef = (int) tu->n;
break;
case DDS_TYPE_ELEMENT_KIND_UNIONLABEL: {
unsigned i, j;
assert(tu->dtype != NULL); /* I think the discriminator type always is first, but I may be wrong ... */
tu->labs = realloc(tu->labs, ((unsigned) tu->nlab + attrs->_length) * sizeof(*tu->labs));
for (i = 0; i < attrs->_length; i++)
{
const DDS_TypeAttribute *a = &attrs->_buffer[i];
switch (a->value._d)
{
case DDS_TYPE_ATTRIBUTE_KIND_NUMBER:
tu->labs[tu->nlab].val = (uint64_t) a->value._u.nvalue;
break;
case DDS_TYPE_ATTRIBUTE_KIND_STRING:
if(tu->dtype->kind == TG_ENUM) {
for (j = 0; j < tu->dtype->u.e.n; j++)
if (strcmp(a->value._u.svalue, tu->dtype->u.e.ms[j].name) == 0)
break;
assert(j < tu->dtype->u.e.n);
tu->labs[tu->nlab].val = (uint64_t) tu->dtype->u.e.ms[j].v;
} else {
assert(tu->dtype->kind == TG_INT || tu->dtype->kind == TG_UINT);
tu->labs[tu->nlab].val = strtoull(a->value._u.svalue, NULL, 10);
}
break;
}
tu->labs[tu->nlab].msidx = (int) tu->n;
tu->nlab++;
}
break;
}
default: {
struct parse_arg subarg = { .context = arg->context, .type = NULL };
(void) parse_type_cb(kind, name, attrs, handle, &subarg);
assert(subarg.type != NULL);
assert(tu->ms[tu->n].name != NULL);
tu->ms[tu->n].type = subarg.type;
t->align = alignup(t->align, subarg.type->align);
tu->off = alignup(tu->off, subarg.type->align);
if (t->size < alignup(tu->off + subarg.type->size, t->align))
t->size = alignup(tu->off + subarg.type->size, t->align);
break;
}
}
return 1;
}
static DDS_boolean parse_union_cb(DDS_TypeElementKind kind, const DDS_string name __attribute__ ((unused)), const DDS_TypeAttributeSeq *attrs __attribute__ ((unused)), DDS_TypeParserHandle handle, void *varg)
{
struct parse_arg *arg = varg;
struct tgtype *t = arg->type;
struct tgtype_U *tu = &t->u.U;
switch (kind)
{
case DDS_TYPE_ELEMENT_KIND_UNIONSWITCH: {
struct parse_arg subarg = { .context = arg->context, .type = NULL };
assert(tu->dtype == NULL);
arg->context->depth++;
(void) DDS_TypeSupport_walk_type_description(handle, parse_type_cb, &subarg);
arg->context->depth--;
assert(subarg.type != NULL);
tu->dtype = detypedef (subarg.type);
t->size = tu->off = tu->dtype->size;
t->align = tu->dtype->align;
break;
}
case DDS_TYPE_ELEMENT_KIND_UNIONCASE: {
tu->ms = realloc(tu->ms, (tu->n+1) * sizeof(*tu->ms));
memset(&tu->ms[tu->n], 0, sizeof(*tu->ms));
tu->ms[tu->n].name = strdup(name);
arg->context->depth++;
(void) DDS_TypeSupport_walk_type_description(handle, parse_unioncase_cb, arg);
arg->context->depth--;
assert(tu->ms[tu->n].type != NULL);
tu->n++;
break;
}
default:
assert(0);
}
return 1;
}
static DDS_boolean print_cb(DDS_TypeElementKind kind, const DDS_string name, const DDS_TypeAttributeSeq *attrs, DDS_TypeParserHandle handle, void *varg)
{
struct parse_arg *arg = varg;
unsigned i;
printf("%*.*s%s %s\n", 4*arg->context->depth, 4*arg->context->depth, " ", typekindstr(kind), name ? name : "(null)");
for (i = 0; i < attrs->_length; i++)
{
const DDS_TypeAttribute *a = &attrs->_buffer[i];
printf("%*.*s %s=", 4*arg->context->depth, 4*arg->context->depth, " ", a->name);
switch (a->value._d)
{
case DDS_TYPE_ATTRIBUTE_KIND_NUMBER:
printf("%d\n", a->value._u.nvalue);
break;
case DDS_TYPE_ATTRIBUTE_KIND_STRING:
printf("%s\n", a->value._u.svalue);
break;
}
}
arg->context->depth++;
(void) DDS_TypeSupport_walk_type_description(handle, print_cb, arg);
arg->context->depth--;
return 1;
}
static unsigned intattr_w_0_default(const DDS_TypeAttributeSeq *attrs, const char *name)
{
unsigned i;
for (i = 0; i < attrs->_length; i++)
{
const DDS_TypeAttribute *a = &attrs->_buffer[i];
if (strcmp(a->name, name) == 0)
{
assert(a->value._d == DDS_TYPE_ATTRIBUTE_KIND_NUMBER);
assert(a->value._u.nvalue >= 0);
return (unsigned) a->value._u.nvalue;
}
}
return 0;
}
static DDS_boolean parse_type_cb(DDS_TypeElementKind kind, const DDS_string name, const DDS_TypeAttributeSeq *attrs, DDS_TypeParserHandle handle, void *varg)
{
struct parse_arg *arg = varg;
arg->context->depth++;
switch (kind)
{
case DDS_TYPE_ELEMENT_KIND_MODULE:
{
struct parse_arg subarg = { .context = arg->context, .type = NULL };
pushmodule(arg, name);
(void) DDS_TypeSupport_walk_type_description(handle, parse_type_cb, &subarg);
popmodule(arg);
break;
}
case DDS_TYPE_ELEMENT_KIND_TYPEDEF:
{
struct parse_arg subarg = { .context = arg->context, .type = NULL };
struct tgtype *t;
(void) DDS_TypeSupport_walk_type_description(handle, parse_type_cb, &subarg);
t = newtgtype(TG_TYPEDEF, subarg.type->size, subarg.type->align);
t->u.td.type = subarg.type;
if (name) addtodict(arg, name, t);
break;
}
case DDS_TYPE_ELEMENT_KIND_TYPE:
arg->type = lookupname(arg, name);
assert(arg->type);
break;
case DDS_TYPE_ELEMENT_KIND_FORWARDDECLARATION:
if (!lookupname (arg, name))
{
struct tgtype *t;
t = newtgtype (TG_PREDECL, 1, 1);
addtodict(arg, name, t);
}
break;
case DDS_TYPE_ELEMENT_KIND_STRUCT:
{
struct tgtype *t = newtgtype(TG_STRUCT, 0, 0);
struct parse_arg subarg = { .context = arg->context, .type = t };
(void) DDS_TypeSupport_walk_type_description(handle, parse_struct_cb, &subarg);
t->size = alignup(t->size, t->align);
if (name) addtodict(arg, name, t);
arg->type = t;
break;
}
case DDS_TYPE_ELEMENT_KIND_UNION:
{
struct tgtype *t = newtgtype(TG_UNION, 0, 0);
struct parse_arg subarg = { .context = arg->context, .type = t };
t->u.U.msidxdef = -1;
(void) DDS_TypeSupport_walk_type_description(handle, parse_union_cb, &subarg);
t->size = alignup(t->size, t->align);
if (name) addtodict(arg, name, t);
arg->type = t;
break;
}
case DDS_TYPE_ELEMENT_KIND_ARRAY:
case DDS_TYPE_ELEMENT_KIND_SEQUENCE:
{
unsigned n = intattr_w_0_default(attrs, "size");
int isseq = (kind == DDS_TYPE_ELEMENT_KIND_SEQUENCE || n == 0);
struct tgtype *t = newtgtype(isseq ? TG_SEQUENCE : TG_ARRAY, 0, 0);
struct parse_arg subarg = { .context = arg->context, .type = NULL };
(void) DDS_TypeSupport_walk_type_description(handle, parse_type_cb, &subarg);
assert(subarg.type);
if (isseq) {
t->u.seq.maxn = n;
t->u.seq.type = subarg.type;
t->size = sizeof (dds_seq_t);
t->align = alignof (dds_seq);
} else {
t->u.ary.type = subarg.type;
t->u.ary.n = n;
t->size = n * subarg.type->size;
t->align = subarg.type->align;
}
if (name) addtodict(arg, name, t);
arg->type = t;
break;
}
case DDS_TYPE_ELEMENT_KIND_ENUM:
{
struct tgtype *t = newtgtype(TG_ENUM, 4, alignof (int32_t));
struct parse_arg subarg = { .context = arg->context, .type = t };
(void) DDS_TypeSupport_walk_type_description(handle, parse_enum_cb, &subarg);
if (name) addtodict(arg, name, t);
arg->type = t;
break;
}
case DDS_TYPE_ELEMENT_KIND_BOOLEAN: arg->type = newtgtype(TG_BOOLEAN, 1, 1); break;
case DDS_TYPE_ELEMENT_KIND_CHAR: arg->type = newtgtype(TG_CHAR, 1, 1); break;
case DDS_TYPE_ELEMENT_KIND_OCTET: arg->type = newtgtype(TG_UINT, 1, 1); break;
case DDS_TYPE_ELEMENT_KIND_SHORT: arg->type = newtgtype(TG_INT, 2, alignof(int16_t)); break;
case DDS_TYPE_ELEMENT_KIND_USHORT: arg->type = newtgtype(TG_UINT, 2, alignof(int16_t)); break;
case DDS_TYPE_ELEMENT_KIND_LONG: arg->type = newtgtype(TG_INT, 4, alignof(int32_t)); break;
case DDS_TYPE_ELEMENT_KIND_ULONG: arg->type = newtgtype(TG_UINT, 4, alignof(int32_t)); break;
case DDS_TYPE_ELEMENT_KIND_LONGLONG: arg->type = newtgtype(TG_INT, 8, alignof(int64_t)); break;
case DDS_TYPE_ELEMENT_KIND_ULONGLONG: arg->type = newtgtype(TG_UINT, 8, alignof(int64_t)); break;
case DDS_TYPE_ELEMENT_KIND_FLOAT: arg->type = newtgtype(TG_FLOAT, 4, alignof(float)); break;
case DDS_TYPE_ELEMENT_KIND_DOUBLE: arg->type = newtgtype(TG_FLOAT, 8, alignof(double)); break;
case DDS_TYPE_ELEMENT_KIND_TIME: arg->type = newtgtype(TG_TIME, 8, alignof(int32_t)); break;
case DDS_TYPE_ELEMENT_KIND_STRING: arg->type = newtgtype(TG_STRING, sizeof(char *), alignof(ptr)); break;
default:
print_cb(kind, name, attrs, handle, arg);
break;
}
arg->context->depth--;
return 1;
}
static int lookupfield(const struct tgtype **ptype, size_t *poff, const struct tgtype *type, const char *name)
{
struct lexer l;
struct token tok;
enum tokenkind tk;
enum { SYMBOL = 1, DOTSYMBOL = 2, INDEX = 4 };
unsigned allowed = SYMBOL;
init_lexer(&tok, &l, name);
*poff = 0;
*ptype = detypedef(type);
while ((tk = scantoken(&tok, &l)) != TOK_ERROR && tk != TOK_EOF && *ptype != NULL) {
switch (tk) {
case TOK_DOT:
if (!(allowed & DOTSYMBOL))
return scanerror(&tok, &l, "'.' unexpected");
allowed = SYMBOL;
break;
case TOK_SYMBOL:
if (!(allowed & SYMBOL))
return scanerror(&tok, &l, "symbol unexpected");
else if ((*ptype)->kind != TG_STRUCT)
return scanerror(&tok, &l, "expected type to be a struct");
else {
const struct tgtype_S *ts = &(*ptype)->u.S;
const unsigned n = ts->n;
unsigned i;
for (i = 0; i < n; i++) {
if (strcmp(tok.val.str, ts->ms[i].name) == 0) {
*poff += ts->ms[i].off;
(*ptype) = detypedef(ts->ms[i].type);
break;
}
}
if (i == n) {
return scanerror(&tok, &l, "field not found in struct");
}
allowed = DOTSYMBOL | INDEX;
}
break;
case TOK_LBRACKET:
if (!(allowed & INDEX))
return scanerror(&tok, &l, "index unexpected");
else if ((*ptype)->kind != TG_ARRAY)
return scanerror(&tok, &l, "expected type to be an array");
else {
const struct tgtype_ary *ta = &(*ptype)->u.ary;
(void) scantoken(&tok, &l);
if (!casttoint(&tok, &l))
return scanerror(&tok, &l, "integer expected");
if (tok.val.ui > (unsigned) ta->n)
return scanerror(&tok, &l, "index out of bounds");
*poff += (size_t) tok.val.ui * ta->type->size;
(*ptype) = detypedef(ta->type);
if (scantoken(&tok, &l) != TOK_RBRACKET)
return scanerror(&tok, &l, "']' expected");
allowed = DOTSYMBOL | INDEX;
}
break;
default:
return scanerror(&tok, &l, "unexpected token");
}
}
if (*ptype == NULL) {
return scanerror(&tok, &l, "non-existent key");
} else if (tk != TOK_EOF || allowed == SYMBOL) {
return scanerror(&tok, &l, "junk at end of input");
} else switch ((*ptype)->kind) {
case TG_CHAR:
case TG_BOOLEAN:
case TG_INT:
case TG_UINT:
case TG_ENUM:
case TG_STRING:
break;
default:
return scanerror(&tok, &l, "not a valid key type");
}
freetoken(&tok);
return 1;
}
static char *get_metadescription(DDS_Topic dds_tp, char **typename, char **keylist)
{
char *md;
*typename = DDS_Topic_get_type_name(dds_tp);
if (strcmp(*typename, "kernelModule::v_participantInfo") == 0) {
DDS_free(*typename);
md = DDS_string_dup(mdParticipantBuiltinTopicData);
*keylist = DDS_string_dup("key[1],key[0]");
*typename = DDS_string_dup("DDS::ParticipantBuiltinTopicData");
} else if(strcmp(*typename, "kernelModule::v_publicationInfo") == 0) {
DDS_free(*typename);
md = DDS_string_dup(mdPublicationBuiltinTopicData);
*keylist = DDS_string_dup("key[1],key[0]");
*typename = DDS_string_dup("DDS::PublicationBuiltinTopicData");
} else if(strcmp(*typename, "kernelModule::v_subscriptionInfo") == 0) {
DDS_free(*typename);
md = DDS_string_dup(mdSubscriptionBuiltinTopicData);
*keylist = DDS_string_dup("key[1],key[0]");
*typename = DDS_string_dup("DDS::SubscriptionBuiltinTopicData");
} else if(strcmp(*typename, "kernelModule::v_topicInfo") == 0) {
DDS_free(*typename);
md = DDS_string_dup(mdTopicBuiltinTopicData);
*keylist = DDS_string_dup("key[1],key[0]");
*typename = DDS_string_dup("DDS::TopicBuiltinTopicData");
} else if(strcmp(*typename, "kernelModule::v_deliveryInfo") == 0) {
/* workaround for a bug */
md = DDS_Topic_get_metadescription(dds_tp);
*keylist = DDS_string_dup("");
} else {
*keylist = DDS_Topic_get_keylist(dds_tp);
md = DDS_Topic_get_metadescription(dds_tp);
}
return md;
}
struct tgtopic *tgnew(DDS_Topic dds_tp, int printtype)
{
DDS_ReturnCode_t result;
struct parse_context context = { .dict = NULL, .nameprefix = strdup(""), .depth = 0 };
struct parse_arg arg = { .context = &context, .type = NULL };
struct tgtopic *tp;
char *topicname;
char *typename;
char *keylist;
char *xs;
topicname = DDS_Topic_get_name(dds_tp);
xs = get_metadescription(dds_tp, &typename, &keylist);
if (printtype && (result = DDS_TypeSupport_parse_type_description(xs, print_cb, &arg)) != DDS_RETCODE_OK)
error("DDS_TypeSupport_parse_type_description: error %d (%s)\n", (int) result, dds_strerror(result));
if ((result = DDS_TypeSupport_parse_type_description(xs, parse_type_cb, &arg)) != DDS_RETCODE_OK)
error("DDS_TypeSupport_parse_type_description: error %d (%s)\n", (int) result, dds_strerror(result));
DDS_free(xs);
tp = malloc(sizeof(*tp));
tp->name = strdup(topicname);
if (arg.type)
tp->type = arg.type;
else
{
tp->type = lookupname(&arg, typename);
if (tp->type == NULL)
error("topic %s: can't find type %s\n", tp->name, typename);
}
tp->size = tp->type->size;
if (*keylist == 0)
{
tp->nkeys = 0;
tp->keys = NULL;
}
else
{
char *cursor, *key;
unsigned i = 0, n = 0;
cursor = keylist;
while (cursor)
{
n++;
cursor = strchr(cursor, ',');
if (cursor) cursor++;
}
tp->nkeys = n;
tp->keys = malloc(n * sizeof (*tp->keys));
cursor = keylist;
while ((key = strsep(&cursor, ",")) != NULL)
{
tp->keys[i].name = strdup(key);
if (!lookupfield(&tp->keys[i].type, &tp->keys[i].off, tp->type, key))
error("topic %s key %s not found\n", tp->name, key);
i++;
}
}
DDS_free(typename);
DDS_free(topicname);
DDS_free(keylist);
while (context.dict)
{
struct dictnode *n = context.dict;
context.dict = n->next;
free(n);
}
free(context.nameprefix);
return tp;
}
void tgfree(struct tgtopic *tp)
{
unsigned i;
for (i = 0; i < tp->nkeys; i++)
free(tp->keys[i].name);
/* FIXME: free tp->type */
free(tp->name);
free(tp->keys);
free(tp);
}
static uint64_t loaddisc(const struct tgtype *t, const char *data)
{
switch (t->kind) {
case TG_BOOLEAN:
return (uint64_t) *data;
case TG_INT:
switch (t->size) {
case 1: return (uint8_t) (*(int8_t *)data);
case 2: return (uint16_t) (*(int16_t *)data);
case 4: return (uint32_t) (*(int32_t *)data);
case 8: return (uint64_t) (*(int64_t *)data);
}
break;
case TG_UINT:
switch (t->size) {
case 1: return *(uint8_t *)data;
case 2: return *(uint16_t *)data;
case 4: return *(uint32_t *)data;
case 8: return *(uint64_t *)data;
}
break;
case TG_ENUM:
return *(uint32_t *)data;
default:
break;
}
assert(0);
return 0;
}
static void storedisc(char *dst, const struct tgtype *t, uint64_t v)
{
switch (t->kind) {
case TG_BOOLEAN:
*(char *)dst = (char) !!v;
break;
case TG_INT:
switch (t->size) {
case 1: *(int8_t *)dst = (int8_t) v; break;
case 2: *(int16_t *)dst = (int16_t) v; break;
case 4: *(int32_t *)dst = (int32_t) v; break;
case 8: *(int64_t *)dst = (int64_t) v; break;
default: assert(0);
}
break;
case TG_UINT:
switch (t->size) {
case 1: *(uint8_t *)dst = (uint8_t) v; break;
case 2: *(uint16_t *)dst = (uint16_t) v; break;
case 4: *(uint32_t *)dst = (uint32_t) v; break;
case 8: *(uint64_t *)dst = (uint64_t) v; break;
default: assert(0);
}
break;
case TG_ENUM:
*(uint32_t *)dst = (uint32_t) v;
break;
default:
assert(0);
}
}
void tgstring_init(struct tgstring *s, size_t chop)
{
s->size = 4096;
s->buf = malloc(s->size);
s->buf[0] = 0;
s->pos = 0;
s->chop = chop;
s->chopped = 0;
}
void tgstring_fini(struct tgstring *s)
{
free(s->buf);
tgstring_init(s, s->chop);
}
static int tgprintf(struct tgstring *s, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
static int tgprintf(struct tgstring *s, const char *fmt, ...)
{
int n;
va_list ap;
if (s->chopped)
return 0;
assert (s->pos < s->size);
va_start(ap, fmt);
n = vsnprintf(s->buf + s->pos, s->size - s->pos, fmt, ap);
va_end(ap);
while (n >= 0 && (size_t)n >= s->size - s->pos)
{
static size_t chunk = 4096-1;
s->size += ((size_t)n+1 + (chunk-1)) & ~(chunk-1);
s->buf = realloc(s->buf, s->size);
va_start(ap, fmt);
n = vsnprintf(s->buf + s->pos, s->size - s->pos, fmt, ap);
va_end(ap);
}
if (n > 0)
s->pos += (size_t)n;
assert(s->pos < s->size);
if (s->pos > s->chop)
{
s->pos = s->chop;
s->buf[s->chop] = 0;
s->chopped = 1;
}
return !s->chopped;
}
static int printchar(struct tgstring *s, int ch, int quote)
{
assert(ch >= 0);
if (ch == quote || ch == '\\')
return tgprintf(s, "\\%c", ch);
else if (isprint(ch))
return tgprintf(s, "%c", ch);
else
return tgprintf(s, "\\x%02x", ch);
}
static unsigned isprint_runlen (const unsigned char *s, unsigned n)
{
unsigned m;
for (m = 0; m < n && s[m] != '"' && s[m] != '\\' && isprint (s[m]); m++)
;
return m;
}
static int tgprint1(struct tgstring *s, const struct tgtype *t, const char *data, int indent, enum tgprint_mode mode)
{
const char *space = (mode == TGPM_DENSE) ? "" : " ";
const char *commaspace = (mode == TGPM_DENSE) ? "," : ", ";
switch (t->kind) {
case TG_PREDECL:
abort ();
case TG_BOOLEAN:
return tgprintf(s, "%s", *data ? "true" : "false");
case TG_CHAR:
tgprintf(s, "'");
printchar(s, (unsigned char) *data, '\'');
return tgprintf(s, "'");
case TG_INT:
switch (t->size) {