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FW/child_debug: use std::string #482

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FW/child_debug: use std::string #482

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Commits on Feb 15, 2024

  1. FW/Logging: make log_message_preformatted() public 

    So we can use it where no formatting is needed elsewhere in the
framework.

Signed-off-by: Thiago Macieira <thiago.macieira@intel.com>
    @thiagomacieira
    thiagomacieira committed Feb 15, 2024
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  2. FW/child_debug: Use the new std::string-based API for dumping context 

    This removes `open_memstream()` on Unix systems and more importantly,
removes the need for an actual temporary file on Windows.

Signed-off-by: Thiago Macieira <thiago.macieira@intel.com>
    @thiagomacieira
    thiagomacieira committed Feb 15, 2024
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  3. FW/child_debug: use std::string for gdb communication too 

    We were using a plain file descriptor because that allowed us to use
`splice()` straight from the pipe to the backing file, in case the
backtrace was big. But that's really unnecessary and was a source of
bugs because the non-Linux code was never tested.

Replace with direct std::string and move up the location where we call
the logging functions to outside of the GDB communication loop.

Signed-off-by: Thiago Macieira <thiago.macieira@intel.com>
    @thiagomacieira
    thiagomacieira committed Feb 15, 2024
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  4. FW/child_debug: also use std::string for running ps 

    This removes the last user of LoggingStream.

Signed-off-by: Thiago Macieira <thiago.macieira@intel.com>
    @thiagomacieira
    thiagomacieira committed Feb 15, 2024
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  5. FW/Logging: remove LoggingStream class 

    All its uses have been replaced with `log_message_preformatted()`.
That's slighty less efficient because we must read into our own buffers
before writing to the log file, something we are going to do anyway. But
it simplifies the codebase and reduces the number of system calls.

Signed-off-by: Thiago Macieira <thiago.macieira@intel.com>
    @thiagomacieira
    thiagomacieira committed Feb 15, 2024
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