diff options
Diffstat (limited to 'src/util/anon_file.c')
| -rw-r--r-- | src/util/anon_file.c | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/src/util/anon_file.c b/src/util/anon_file.c index f8d9ef204c4..bc674c4b66f 100644 --- a/src/util/anon_file.c +++ b/src/util/anon_file.c @@ -27,24 +27,26 @@ * Based on weston shared/os-compatibility.c */ -#ifndef _WIN32 #include "anon_file.h" +#include "detect_os.h" + +#ifndef _WIN32 #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <stdlib.h> -#if defined(__FreeBSD__) || defined(__OpenBSD__) +#if defined(HAVE_MEMFD_CREATE) || defined(__FreeBSD__) || defined(__OpenBSD__) #include <sys/mman.h> -#elif defined(HAVE_MEMFD_CREATE) || defined(ANDROID) +#elif DETECT_OS_ANDROID #include <sys/syscall.h> #include <linux/memfd.h> #else #include <stdio.h> #endif -#if !(defined(__FreeBSD__) || defined(HAVE_MEMFD_CREATE) || defined(HAVE_MKOSTEMP) || defined(ANDROID)) +#if !(defined(__FreeBSD__) || defined(HAVE_MEMFD_CREATE) || defined(HAVE_MKOSTEMP) || DETECT_OS_ANDROID) static int set_cloexec_or_close(int fd) { @@ -68,7 +70,7 @@ err: } #endif -#if !(defined(__FreeBSD__) || defined(HAVE_MEMFD_CREATE) || defined(ANDROID)) +#if !(defined(__FreeBSD__) || defined(HAVE_MEMFD_CREATE) || DETECT_OS_ANDROID) static int create_tmpfile_cloexec(char *tmpname) { @@ -112,20 +114,24 @@ create_tmpfile_cloexec(char *tmpname) * SCM_RIGHTS methods. */ int -os_create_anonymous_file(off_t size, const char *debug_name) +os_create_anonymous_file(int64_t size, const char *debug_name) { int fd, ret; -#ifdef __FreeBSD__ +#if defined(HAVE_MEMFD_CREATE) + if (!debug_name) + debug_name = "mesa-shared"; + fd = memfd_create(debug_name, MFD_CLOEXEC | MFD_ALLOW_SEALING); +#elif DETECT_OS_ANDROID + if (!debug_name) + debug_name = "mesa-shared"; + fd = syscall(SYS_memfd_create, debug_name, MFD_CLOEXEC | MFD_ALLOW_SEALING); +#elif defined(__FreeBSD__) fd = shm_open(SHM_ANON, O_CREAT | O_RDWR | O_CLOEXEC, 0600); #elif defined(__OpenBSD__) char template[] = "/tmp/mesa-XXXXXXXXXX"; fd = shm_mkstemp(template); if (fd != -1) shm_unlink(template); -#elif defined(HAVE_MEMFD_CREATE) || defined(ANDROID) - if (!debug_name) - debug_name = "mesa-shared"; - fd = syscall(SYS_memfd_create, debug_name, MFD_CLOEXEC); #else const char *path; char *name; @@ -151,7 +157,7 @@ os_create_anonymous_file(off_t size, const char *debug_name) if (fd < 0) return -1; - ret = ftruncate(fd, size); + ret = ftruncate(fd, (off_t)size); if (ret < 0) { close(fd); return -1; @@ -159,4 +165,17 @@ os_create_anonymous_file(off_t size, const char *debug_name) return fd; } +#else + +#include <windows.h> +#include <io.h> + +int +os_create_anonymous_file(int64_t size, const char *debug_name) +{ + (void)debug_name; + HANDLE h = CreateFileMappingW(INVALID_HANDLE_VALUE, NULL, + PAGE_READWRITE, (size >> 32), size & 0xFFFFFFFF, NULL); + return _open_osfhandle((intptr_t)h, 0); +} #endif |