summaryrefslogtreecommitdiff
path: root/source/kit/shared_memory.posix.c
diff options
context:
space:
mode:
authorMitya Selivanov <automainint@guattari.tech>2024-07-14 21:12:37 +0200
committerMitya Selivanov <automainint@guattari.tech>2024-07-14 21:12:37 +0200
commit30740ca4131d1f574718262451b4410207dc8d4e (patch)
treefc88b16a216079397ad85b9c6b1a1c1c5712a814 /source/kit/shared_memory.posix.c
parent5e3c99bb1cf1d03ea006300121265571f5008fd2 (diff)
downloadsaw-30740ca4131d1f574718262451b4410207dc8d4e.zip
Reworking the build system
Diffstat (limited to 'source/kit/shared_memory.posix.c')
-rw-r--r--source/kit/shared_memory.posix.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/source/kit/shared_memory.posix.c b/source/kit/shared_memory.posix.c
deleted file mode 100644
index fa0db98..0000000
--- a/source/kit/shared_memory.posix.c
+++ /dev/null
@@ -1,124 +0,0 @@
-#include "shared_memory.h"
-
-#if !defined(_WIN32) || defined(__CYGWIN__)
-# include <stdio.h>
-# include <string.h>
-# include <sys/mman.h>
-# include <sys/stat.h>
-# include <fcntl.h>
-# include <unistd.h>
-# include <assert.h>
-
-kit_shared_memory_t kit_shared_memory_open(kit_str_t name, i64 size,
- i32 mode) {
- kit_shared_memory_t mem;
-
- memset(&mem, 0, sizeof mem);
-
- assert(size > 0);
- assert(name.size > 0);
- assert(name.size + 1 <= NAME_MAX);
- assert(name.values != NULL);
-
- if (size <= 0) {
- mem.status = KIT_ERROR_INVALID_SIZE;
- return mem;
- }
-
- if (name.size <= 0) {
- mem.status = KIT_ERROR_INVALID_NAME;
- return mem;
- }
-
- if (name.size + 1 > NAME_MAX) {
- mem.status = KIT_ERROR_NAME_TOO_LONG;
- return mem;
- }
-
- for (i64 i = 0; i < name.size; i++)
- if (name.values[i] == '/' || name.values[i] == '\\') {
- mem.status = KIT_ERROR_INVALID_NAME;
- return mem;
- }
-
- mem._name[0] = '/';
- memcpy(mem._name + 1, name.values, name.size);
- mem._name[1 + name.size] = '\0';
-
- i32 fd = shm_open(mem._name,
- mode == KIT_SHARED_MEMORY_CREATE
- ? O_RDWR | O_CREAT | O_EXCL
- : O_RDWR,
- mode == KIT_SHARED_MEMORY_CREATE ? 0660 : 0);
-
- if (fd == -1) {
- mem.status = KIT_ERROR_OPEN_FAILED;
- return mem;
- }
-
- if (mode == KIT_SHARED_MEMORY_CREATE && ftruncate(fd, size) == -1) {
- shm_unlink(mem._name);
- assert(0);
- mem.status = KIT_ERROR_TRUNCATE_FAILED;
- return mem;
- }
-
- void *p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd,
- 0);
-
- close(fd);
-
- if (p == MAP_FAILED) {
- shm_unlink(mem._name);
- mem.status = KIT_ERROR_MAP_FAILED;
- return mem;
- }
-
- mem.status = KIT_OK;
- mem.size = size;
- mem.bytes = (u8 *) p;
- mem._owned = (mode == KIT_SHARED_MEMORY_CREATE);
- return mem;
-}
-
-s32 kit_shared_memory_close(kit_shared_memory_t *mem) {
- assert(mem != NULL);
-
- if (mem == NULL)
- return KIT_ERROR_INVALID_ARGUMENT;
-
- s32 status = KIT_OK;
-
- if (munmap(mem->bytes, mem->size) != 0)
- status |= KIT_ERROR_UNMAP_FAILED;
- if (mem->_owned && shm_unlink(mem->_name) != 0)
- status |= KIT_ERROR_UNLINK_FAILED;
-
- return status;
-}
-
-s32 kit_shared_memory_clean(kit_str_t name) {
- assert(name.size > 0);
- assert(name.size + 1 <= NAME_MAX);
- assert(name.values != NULL);
-
- if (name.size <= 0)
- return KIT_ERROR_INVALID_NAME;
-
- if (name.size + 1 > NAME_MAX)
- return KIT_ERROR_NAME_TOO_LONG;
-
- for (i64 i = 0; i < name.size; i++)
- if (name.values[i] == '/' || name.values[i] == '\\')
- return KIT_ERROR_INVALID_NAME;
-
- char buf[NAME_MAX + 1] = "/";
- memcpy(buf + 1, name.values, name.size);
- buf[1 + name.size] = '\0';
-
- if (shm_unlink(buf) != 0)
- return KIT_ERROR_UNLINK_FAILED;
-
- return KIT_OK;
-}
-#endif