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author | Emil Velikov <emil.l.velikov@gmail.com> | 2014-02-28 03:34:51 +0000 |
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committer | Emil Velikov <emil.l.velikov@gmail.com> | 2014-08-15 17:41:57 +0100 |
commit | 8d2745703c2ad5dd73a060d135bdb030d0dda40a (patch) | |
tree | 680f72f4de48e841e37f46b35abbee66a3fd7104 /src/gallium/auxiliary/os/os_misc.c | |
parent | 139751403c56d965d7c22bceddd34387759075a9 (diff) | |
download | external_mesa3d-8d2745703c2ad5dd73a060d135bdb030d0dda40a.zip external_mesa3d-8d2745703c2ad5dd73a060d135bdb030d0dda40a.tar.gz external_mesa3d-8d2745703c2ad5dd73a060d135bdb030d0dda40a.tar.bz2 |
auxiliary/os: introduce os_get_total_physical_memory helper function
Cc: Alexander von Gluck IV <kallisti5@unixzen.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Diffstat (limited to 'src/gallium/auxiliary/os/os_misc.c')
-rw-r--r-- | src/gallium/auxiliary/os/os_misc.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/os/os_misc.c b/src/gallium/auxiliary/os/os_misc.c index 447e720..3846a9a 100644 --- a/src/gallium/auxiliary/os/os_misc.c +++ b/src/gallium/auxiliary/os/os_misc.c @@ -47,6 +47,19 @@ #endif +#if defined(PIPE_OS_LINUX) +# include <unistd.h> +#elif defined(PIPE_OS_APPLE) || defined(PIPE_OS_BSD) +# include <sys/sysctl.h> +#elif defined(PIPE_OS_HAIKU) +# include <kernel/OS.h> +#elif defined(PIPE_OS_WINDOWS) +# include <windows.h> +#else +#error unexpected platform in os_sysinfo.c +#endif + + void os_log_message(const char *message) { @@ -89,3 +102,54 @@ os_get_option(const char *name) return getenv(name); } + +/** + * Return the size of the total physical memory. + * \param size returns the size of the total physical memory + * \return true for success, or false on failure + */ +bool +os_get_total_physical_memory(uint64_t *size) +{ +#if defined(PIPE_OS_LINUX) + const long phys_pages = sysconf(_SC_PHYS_PAGES); + const long page_size = sysconf(_SC_PAGE_SIZE); + + *size = phys_pages * page_size; + return (phys_pages > 0 && page_size > 0); +#elif defined(PIPE_OS_APPLE) || defined(PIPE_OS_BSD) + size_t len = sizeof(size); + int mib[2]; + + mib[0] = CTL_HW; +#if defined(PIPE_OS_APPLE) + mib[1] = HW_MEMSIZE; +#elif defined(PIPE_OS_NETBSD) || defined(PIPE_OS_OPENBSD) + mib[1] = HW_PHYSMEM64; +#elif defined(PIPE_OS_FREEBSD) + mib[1] = HW_REALMEM; +#else +#error Unsupported *BSD +#endif + + return (sysctl(mib, 2, &size, &len, NULL, 0) == 0); +#elif defined(PIPE_OS_HAIKU) + system_info info; + status_t ret; + + ret = get_system_info(&info); + *size = info.max_pages * B_PAGE_SIZE; + return (ret == B_OK); +#elif defined(PIPE_OS_WINDOWS) + MEMORYSTATUSEX status; + BOOL ret; + + status.dwLength = sizeof(status); + ret = GlobalMemoryStatusEx(&status); + *size = status.ullTotalPhys; + return (ret == TRUE); +#else +#error unexpected platform in os_sysinfo.c + return false; +#endif +} |