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call ashmem_create_region() if possible (API level 23~26), now that we bump minSdkVersion to 23, this won't be a problem

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This commit is contained in:
guoling
2024-04-30 11:09:19 +08:00
parent 8b8852479b
commit 50d576694a
3 changed files with 29 additions and 15 deletions
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Core/MemoryFile_Android.cpp
+27 -13
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@@ -135,32 +135,46 @@ typedef size_t (*AShmem_getSize_t)(int fd);
#endif
int ASharedMemory_create(const char *name, size_t size) {
int fd = -1;
#ifndef MMKV_OHOS
if (g_android_api >= __ANDROID_API_O__) {
if (g_android_api >= __ANDROID_API_O__ || g_android_api >= __ANDROID_API_M__) {
static auto handle = loadLibrary();
static AShmem_create_t funcPtr =
(handle != nullptr) ? reinterpret_cast<AShmem_create_t>(dlsym(handle, "ASharedMemory_create")) : nullptr;
if (funcPtr) {
fd = funcPtr(name, size);
int fd = funcPtr(name, size);
if (fd < 0) {
MMKVError("fail to ASharedMemory_create %s with size %zu, errno:%s", name, size, strerror(errno));
} else {
MMKVInfo("ASharedMemory_create %s with size %zu, fd:%d", name, size, fd);
return fd;
}
} else if (g_android_api >= __ANDROID_API_O__) {
MMKVWarning("fail to locate ASharedMemory_create() from loading libandroid.so");
}
static AShmem_create_t regionFuncPtr =
(handle != nullptr) ? reinterpret_cast<AShmem_create_t>(dlsym(handle, "ashmem_create_region")) : nullptr;
if (regionFuncPtr) {
int fd = regionFuncPtr(name, size);
if (fd < 0) {
MMKVError("fail to ashmem_create_region %s with size %zu, errno:%s", name, size, strerror(errno));
} else {
MMKVInfo("ashmem_create_region %s with size %zu, fd:%d", name, size, fd);
return fd;
}
} else {
MMKVWarning("fail to locate ASharedMemory_create() from loading libandroid.so");
MMKVWarning("fail to locate ashmem_create_region() from loading libandroid.so");
}
}
#endif
int fd = open(ASHMEM_NAME_DEF, O_RDWR | O_CLOEXEC);
if (fd < 0) {
fd = open(ASHMEM_NAME_DEF, O_RDWR | O_CLOEXEC);
if (fd < 0) {
MMKVError("fail to open ashmem:%s, %s", name, strerror(errno));
} else {
if (ioctl(fd, ASHMEM_SET_NAME, name) != 0) {
MMKVError("fail to set ashmem name:%s, %s", name, strerror(errno));
} else if (ioctl(fd, ASHMEM_SET_SIZE, size) != 0) {
MMKVError("fail to set ashmem:%s, size %zu, %s", name, size, strerror(errno));
}
MMKVError("fail to open ashmem:%s, %s", name, strerror(errno));
} else {
if (ioctl(fd, ASHMEM_SET_NAME, name) != 0) {
MMKVError("fail to set ashmem name:%s, %s", name, strerror(errno));
} else if (ioctl(fd, ASHMEM_SET_SIZE, size) != 0) {
MMKVError("fail to set ashmem:%s, size %zu, %s", name, size, strerror(errno));
}
}
return fd;