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8c0c9c69a1
in the error path where the mq_notify syscall fails, the initiating thread may have closed the socket before the worker thread calls recv on it. even in the absence of such a race, if the recv call failed, e.g. due to seccomp policy blocking it, the worker thread could proceed to close, producing a double-close condition. this can all be simplified by moving the mq_notify syscall into the new thread, so that the error case does not require pthread_cancel. now, the initiating thread only needs to read back the error status after waiting for the worker thread to consume its arguments. |
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| configure | ||
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musl libc
musl, pronounced like the word "mussel", is an MIT-licensed
implementation of the standard C library targetting the Linux syscall
API, suitable for use in a wide range of deployment environments. musl
offers efficient static and dynamic linking support, lightweight code
and low runtime overhead, strong fail-safe guarantees under correct
usage, and correctness in the sense of standards conformance and
safety. musl is built on the principle that these goals are best
achieved through simple code that is easy to understand and maintain.
The 1.1 release series for musl features coverage for all interfaces
defined in ISO C99 and POSIX 2008 base, along with a number of
non-standardized interfaces for compatibility with Linux, BSD, and
glibc functionality.
For basic installation instructions, see the included INSTALL file.
Information on full musl-targeted compiler toolchains, system
bootstrapping, and Linux distributions built on musl can be found on
the project website:
http://www.musl-libc.org/