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initial OpenBSD support

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This commit is contained in:
Sébastien Marie
2022-02-25 08:49:25 +00:00
parent 3a469dc13e
commit 5676c9e7eb
30 changed files with 1151 additions and 27 deletions
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src/gb/gb.h
+45 -1
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@@ -79,6 +79,10 @@ extern "C" {
#ifndef GB_SYSTEM_FREEBSD
#define GB_SYSTEM_FREEBSD 1
#endif
#elif defined(__OpenBSD__)
#ifndef GB_SYSTEM_OPENBSD
#define GB_SYSTEM_OPENBSD 1
#endif
#else
#error This UNIX operating system is not supported
#endif
@@ -199,7 +203,7 @@ extern "C" {
#endif
#include <stdlib.h> // NOTE(bill): malloc on linux
#include <sys/mman.h>
#if !defined(GB_SYSTEM_OSX) && !defined(__FreeBSD__)
#if !defined(GB_SYSTEM_OSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__)
#include <sys/sendfile.h>
#endif
#include <sys/stat.h>
@@ -235,6 +239,15 @@ extern "C" {
#define sendfile(out, in, offset, count) sendfile(out, in, offset, count, NULL, NULL, 0)
#endif
#if defined(GB_SYSTEM_OPENBSD)
#include <stdio.h>
#include <pthread_np.h>
#define lseek64 lseek
// XXX OpenBSD
#define sendfile(out, in, offset, count) (-1)
#endif
#if defined(GB_SYSTEM_UNIX)
#include <semaphore.h>
#endif
@@ -783,6 +796,13 @@ typedef struct gbAffinity {
isize thread_count;
isize threads_per_core;
} gbAffinity;
#elif defined(GB_SYSTEM_OPENBSD)
typedef struct gbAffinity {
b32 is_accurate;
isize core_count;
isize thread_count;
isize threads_per_core;
} gbAffinity;
#else
#error TODO(bill): Unknown system
#endif
@@ -3678,6 +3698,30 @@ b32 gb_affinity_set(gbAffinity *a, isize core, isize thread_index) {
return true;
}
isize gb_affinity_thread_count_for_core(gbAffinity *a, isize core) {
GB_ASSERT(0 <= core && core < a->core_count);
return a->threads_per_core;
}
#elif defined(GB_SYSTEM_OPENBSD)
#include <unistd.h>
void gb_affinity_init(gbAffinity *a) {
a->core_count = sysconf(_SC_NPROCESSORS_ONLN);
a->threads_per_core = 1;
a->is_accurate = a->core_count > 0;
a->core_count = a->is_accurate ? a->core_count : 1;
a->thread_count = a->core_count;
}
void gb_affinity_destroy(gbAffinity *a) {
gb_unused(a);
}
b32 gb_affinity_set(gbAffinity *a, isize core, isize thread_index) {
return true;
}
isize gb_affinity_thread_count_for_core(gbAffinity *a, isize core) {
GB_ASSERT(0 <= core && core < a->core_count);
return a->threads_per_core;