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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /docs/nspr/process_forking_in_nspr.rst | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'docs/nspr/process_forking_in_nspr.rst')
-rw-r--r-- | docs/nspr/process_forking_in_nspr.rst | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/docs/nspr/process_forking_in_nspr.rst b/docs/nspr/process_forking_in_nspr.rst new file mode 100644 index 0000000000..d73291edf0 --- /dev/null +++ b/docs/nspr/process_forking_in_nspr.rst @@ -0,0 +1,23 @@ +Process forking in NSPR +======================= + +The threads provided in NetScape Portable Runtime (NSPR) are implemented +using different mechanisms on the various platforms. On some platforms, +NSPR threads directly map one-to-one to the threads provided by the +platform vendor, on other platforms NSPR threads are basically +user-level threads within a single process (with no kernel threads) and +on still others NSPR threads are user-level threads implemented on top +of one or more kernel threads within single address space. + +NSPR does not override the fork function and so, when fork is called +from the NSPR thread the results are different on the various platforms. +All the threads present in the parent process may be replicated in the +child process, only the calling thread may be replicated in the child +process or only the calling kernel thread may be replicated. + +So, to be consistent across all platforms, it is suggested that when +using fork in a NSPR thread; + +#. The exec function should be called in the child process. +#. No NSPR functions should be called in the child process before the + exec call is made. |