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| author | Nico Weber <thakis@chromium.org> | 2020-07-14 16:41:59 -0400 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2020-07-15 00:07:20 +0200 |
| commit | 4eb967b5ebd5ca7a00049c7f958011e54b975040 (patch) | |
| tree | 25da6871473ae3484cf3c1c894b287b8be42626c /Libraries/LibC | |
| parent | 782cd93c012bcad8a96dfd67aeb782ef49d380f9 (diff) | |
| download | serenity-4eb967b5ebd5ca7a00049c7f958011e54b975040.zip | |
LibC+Kernel: Start implementing sysconf
For now, only the non-standard _SC_NPROCESSORS_CONF and
_SC_NPROCESSORS_ONLN are implemented.
Use them to make ninja pick a better default -j value.
While here, make the ninja package script not fail if
no other port has been built yet.
Diffstat (limited to 'Libraries/LibC')
| -rw-r--r-- | Libraries/LibC/unistd.cpp | 6 | ||||
| -rw-r--r-- | Libraries/LibC/unistd.h | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/Libraries/LibC/unistd.cpp b/Libraries/LibC/unistd.cpp index 80b05a16af..30929d47c1 100644 --- a/Libraries/LibC/unistd.cpp +++ b/Libraries/LibC/unistd.cpp @@ -722,4 +722,10 @@ char* getpass(const char* prompt) dbg() << "FIXME: getpass(\"" << prompt << "\")"; ASSERT_NOT_REACHED(); } + +long sysconf(int name) +{ + int rc = syscall(SC_sysconf, name); + __RETURN_WITH_ERRNO(rc, rc, -1); +} } diff --git a/Libraries/LibC/unistd.h b/Libraries/LibC/unistd.h index 8a9687dc39..5836018975 100644 --- a/Libraries/LibC/unistd.h +++ b/Libraries/LibC/unistd.h @@ -172,4 +172,10 @@ enum { #define _POSIX_PRIORITY_SCHEDULING #define _POSIX_VDISABLE '\0' +enum { + _SC_NPROCESSORS_CONF, + _SC_NPROCESSORS_ONLN, +}; +long sysconf(int name); + __END_DECLS |