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file: keep independent Linux file handles coherent

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This commit is contained in:
nmzik
2026-10-16 01:26:56 +02:00
parent f7ae86c982
commit cbe5b62947
2 changed files with 61 additions and 65 deletions
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src/common/platform/sysLinuxFileIO.cpp
+18 -65
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@@ -152,42 +152,29 @@ void SysFileWrite(const void* data, uint32_t size, sys_file_t& f, uint32_t* byte
}
}
sys_file_t* SysFileCreate(const std::filesystem::path& file_name) {
static sys_file_t* OpenHostFile(const std::filesystem::path& file_name, const char* mode,
sys_file_cache_type_t cache_type) {
auto* ret = new sys_file_t;
auto real_name = get_internal_name(file_name);
auto real_name_str = real_name.string();
ret->f = fopen(real_name_str.c_str(), "w+");
if (ret->f == nullptr) {
printf("can't create file: %s\n", real_name_str.c_str());
ret->f = fopen(get_internal_name(file_name).c_str(), mode);
ret->type = ret->f == nullptr ? SYS_FILE_ERROR : SYS_FILE_FILE;
if (ret->f != nullptr) {
// Independent handles must observe writes and truncation immediately.
setvbuf(ret->f, nullptr, _IONBF, 0);
apply_cache_hint(ret->f, cache_type);
}
return ret;
}
ret->type = SYS_FILE_FILE;
sys_file_t* SysFileCreate(const std::filesystem::path& file_name) {
auto* ret = OpenHostFile(file_name, "w+", SYS_FILE_CACHE_AUTO);
if (ret->f == nullptr) {
printf("can't create file: %s\n", file_name.c_str());
}
return ret;
}
sys_file_t* SysFileOpenR(const std::filesystem::path& file_name, sys_file_cache_type_t cache_type) {
auto* ret = new sys_file_t;
ret->type = SYS_FILE_FILE;
auto internal_name = get_internal_name(file_name);
auto internal_name_str = internal_name.string();
FILE* f = fopen(internal_name_str.c_str(), "r");
if (f == nullptr) {
ret->type = SYS_FILE_ERROR;
}
apply_cache_hint(f, cache_type);
ret->f = f;
return ret;
return OpenHostFile(file_name, "r", cache_type);
}
sys_file_t* SysFileOpen(uint8_t* buf, uint32_t buf_size) {
@@ -215,46 +202,12 @@ sys_file_t* SysFileCreate() {
}
sys_file_t* SysFileOpenW(const std::filesystem::path& file_name, sys_file_cache_type_t cache_type) {
auto* ret = new sys_file_t;
auto real_name = get_internal_name(file_name);
auto real_name_str = real_name.string();
FILE* f = fopen(real_name_str.c_str(), "r+");
if (f == nullptr) {
ret->type = SYS_FILE_ERROR;
} else {
ret->type = SYS_FILE_FILE;
}
apply_cache_hint(f, cache_type);
ret->f = f;
return ret;
return OpenHostFile(file_name, "r+", cache_type);
}
sys_file_t* SysFileOpenRw(const std::filesystem::path& file_name,
sys_file_cache_type_t cache_type) {
auto* ret = new sys_file_t;
auto real_name = get_internal_name(file_name);
auto real_name_str = real_name.string();
FILE* f = fopen(real_name_str.c_str(), "r+");
if (f == nullptr) {
ret->type = SYS_FILE_ERROR;
} else {
ret->type = SYS_FILE_FILE;
}
apply_cache_hint(f, cache_type);
ret->f = f;
return ret;
return OpenHostFile(file_name, "r+", cache_type);
}
void SysFileClose(sys_file_t* f) {