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| author | neumann <neumann> | 2023-07-25 09:01:51 (GMT) |
|---|---|---|
| committer | neumann <neumann> | 2023-07-25 09:01:51 (GMT) |
| commit | d880550d56911af6fdba25b4863bc8e49d4df29f (patch) | |
| tree | b4e073dfd296c3ce4b8308fd2fc44de7727ede3f /unix/tclUnixFile.c | |
| parent | c1e69b2d6bffd5ec2ca5e44da5fc0754a51b0249 (diff) | |
| download | tcl-d880550d56911af6fdba25b4863bc8e49d4df29f.zip tcl-d880550d56911af6fdba25b4863bc8e49d4df29f.tar.gz tcl-d880550d56911af6fdba25b4863bc8e49d4df29f.tar.bz2 | |
Prefer vfork() over posix_spawnp()
In essence, older versions of the posix_spawn(p) implementation under
glibc have the problem not returning the correct error number in case
the spawn call fails. This is e.g. a problem with CentOS 7, which uses
GNU libc 2.17, which was released 2012-12-25. This has the consequence
that on such systems, Tcl is not error message compliant to versions
without posix_spawn.
The versions of vfork() do not face this problem and show similar
performance characteristics like with posix_spawnp() (spawn time in
essence independent of memory footprint size).
This change was tested with macOS 13.4, Ubuntu 20.04, CentOS 7.9 and
OpenBSD 7.2.
Diffstat (limited to 'unix/tclUnixFile.c')
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