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nmzik
2026-07-16 10:21:41 +02:00
commit 147188b143
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#include "common/common.h"
#if KYTY_PLATFORM != KYTY_PLATFORM_LINUX
// #error "KYTY_PLATFORM != KYTY_PLATFORM_LINUX"
#else
#include "common/assert.h"
#include "common/platform/sysFileIO.h"
#include "common/platform/sysTimer.h"
#include "common/stringUtils.h"
#include <cerrno>
#include <cstdlib>
#include <sys/stat.h>
#include <unistd.h>
#include <utime.h>
// NOLINTNEXTLINE(readability-identifier-naming)
enum sys_file_type_t {
SYS_FILE_ERROR, // NOLINT(readability-identifier-naming)
SYS_FILE_MEMORY_STAT, // NOLINT(readability-identifier-naming)
SYS_FILE_FILE, // NOLINT(readability-identifier-naming)
SYS_FILE_MEMORY_DYN // NOLINT(readability-identifier-naming)
};
// NOLINTNEXTLINE(readability-identifier-naming)
struct sys_file_mem_buf_t {
uint8_t* base;
uint8_t* ptr;
uint32_t size;
};
// NOLINTNEXTLINE(readability-identifier-naming)
struct sys_file_t {
sys_file_type_t type;
union {
FILE* f;
sys_file_mem_buf_t* buf;
};
};
static std::filesystem::path get_internal_name(const std::filesystem::path& name) {
return name.is_absolute() ? name : (std::filesystem::path(".") / name);
}
void SysFileRead(void* data, uint32_t size, sys_file_t& f, uint32_t* bytes_read) {
if (f.type == SYS_FILE_FILE) {
size_t w = fread(data, 1, size, f.f);
if (bytes_read != nullptr) {
*bytes_read = w;
}
} else if (f.type == SYS_FILE_MEMORY_STAT) {
uint32_t s = size;
if (f.buf->size != 0) {
uint32_t l = f.buf->size - (f.buf->ptr - f.buf->base);
if (s > l) {
s = l;
}
}
memcpy(data, f.buf->ptr, s);
f.buf->ptr += s;
if (bytes_read != nullptr) {
*bytes_read = s;
}
} else if (f.type == SYS_FILE_MEMORY_DYN) {
uint32_t s = size;
if (f.buf->size != 0) {
uint32_t l = f.buf->size - (f.buf->ptr - f.buf->base);
if (s > l) {
s = l;
}
} else {
s = 0;
}
memcpy(data, f.buf->ptr, s);
f.buf->ptr += s;
if (bytes_read != nullptr) {
*bytes_read = s;
}
}
}
void SysFileWrite(const void* data, uint32_t size, sys_file_t& f, uint32_t* bytes_written) {
if (f.type == SYS_FILE_FILE) {
size_t w = fwrite(data, 1, size, f.f);
if (bytes_written != nullptr) {
*bytes_written = w;
}
} else if (f.type == SYS_FILE_MEMORY_STAT) {
uint32_t s = size;
if (f.buf->size != 0) {
uint32_t l = f.buf->size - (f.buf->ptr - f.buf->base);
if (s > l) {
s = l;
}
}
memcpy(f.buf->ptr, data, s);
f.buf->ptr += s;
if (bytes_written != nullptr) {
*bytes_written = s;
}
} else if (f.type == SYS_FILE_MEMORY_DYN) {
uint32_t pos = f.buf->ptr - f.buf->base;
if (f.buf->size < pos + size) {
f.buf->base = static_cast<uint8_t*>(std::realloc(f.buf->base, pos + size));
f.buf->ptr = f.buf->base + pos;
f.buf->size = pos + size;
}
memcpy(f.buf->ptr, data, size);
f.buf->ptr += size;
if (bytes_written != nullptr) {
*bytes_written = size;
}
}
}
void SysFileWrite(uint32_t n, sys_file_t& f) {
SysFileWrite(&n, 4, f);
}
sys_file_t* SysFileCreate(const std::filesystem::path& file_name) {
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->type = SYS_FILE_FILE;
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;
}
ret->f = f;
return ret;
}
sys_file_t* SysFileOpen(uint8_t* buf, uint32_t buf_size) {
auto* ret = new sys_file_t;
ret->type = SYS_FILE_MEMORY_STAT;
ret->buf = new sys_file_mem_buf_t;
ret->buf->base = buf;
ret->buf->ptr = buf;
ret->buf->size = buf_size;
return ret;
}
sys_file_t* SysFileCreate() {
auto* ret = new sys_file_t;
ret->type = SYS_FILE_MEMORY_DYN;
ret->buf = new sys_file_mem_buf_t;
ret->buf->base = nullptr;
ret->buf->ptr = nullptr;
ret->buf->size = 0;
return ret;
}
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;
}
ret->f = f;
return ret;
}
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;
}
ret->f = f;
return ret;
}
void SysFileClose(sys_file_t* f) {
[[maybe_unused]] int result = 0;
if (f->type == SYS_FILE_FILE && f->f != nullptr) {
result = fclose(f->f);
} else if (f->type == SYS_FILE_MEMORY_STAT) {
delete f->buf;
} else if (f->type == SYS_FILE_MEMORY_DYN) {
std::free(f->buf->base);
delete f->buf;
}
// f.type = SYS_FILE_ERROR;
delete f;
}
uint64_t SysFileSize(sys_file_t& f) {
[[maybe_unused]] int result = 0;
if (f.type == SYS_FILE_FILE) {
uint32_t pos = ftell(f.f);
result = fseek(f.f, 0, SEEK_END);
uint32_t size = ftell(f.f);
result = fseek(f.f, pos, SEEK_SET);
return size;
}
if (f.type == SYS_FILE_MEMORY_STAT || f.type == SYS_FILE_MEMORY_DYN) {
return f.buf->size;
}
return 0;
}
uint64_t SysFileSize(const std::filesystem::path& file_name) {
sys_file_t* f = SysFileOpenR(file_name);
uint64_t size = SysFileSize(*f);
SysFileClose(f);
return size;
}
bool SysFileTruncate(sys_file_t& /*f*/, uint64_t /*size*/) {
return false;
}
bool SysFileUnlink(sys_file_t& /*f*/, const std::filesystem::path& name) {
return SysFileDeleteFile(name);
}
bool SysFileSeek(sys_file_t& f, uint64_t offset) {
bool ok = true;
if (f.type == SYS_FILE_FILE) {
ok = (fseek(f.f, static_cast<int64_t>(offset), SEEK_SET) == 0);
// LARGE_INTEGER s;
// s.QuadPart = offset;
// SetFilePointerEx(f.handle, s, 0, FILE_BEGIN);
// printf("seek: %u\n", offset);
} else if (f.type == SYS_FILE_MEMORY_STAT || f.type == SYS_FILE_MEMORY_DYN) {
f.buf->ptr = f.buf->base + offset;
}
return ok;
}
uint64_t SysFileTell(sys_file_t& f) {
if (f.type == SYS_FILE_FILE) {
return ftell(f.f);
}
if (f.type == SYS_FILE_MEMORY_STAT || f.type == SYS_FILE_MEMORY_DYN) {
return f.buf->ptr - f.buf->base;
}
return 0;
}
bool SysFileIsError(sys_file_t& f) {
return f.type == SYS_FILE_ERROR || (f.type == SYS_FILE_FILE && f.f == nullptr);
}
bool SysFileIsDirectoryExisting(const std::filesystem::path& path) {
auto real_name = get_internal_name(path);
auto real_name_str = real_name.string();
struct stat s {};
if (0 != stat(real_name_str.c_str(), &s)) {
return false;
}
return S_ISDIR(s.st_mode); // NOLINT
}
bool SysFileIsFileExisting(const std::filesystem::path& name) {
auto real_name = get_internal_name(name);
auto real_name_str = real_name.string();
struct stat s {};
if (0 != stat(real_name_str.c_str(), &s)) {
return false;
}
return !S_ISDIR(s.st_mode); // NOLINT
}
bool SysFileCreateDirectory(const std::filesystem::path& path) {
auto real_name = get_internal_name(path);
auto real_name_str = real_name.string();
mode_t m = S_IRWXU | S_IRWXG | S_IRWXO; // NOLINT
int r = mkdir(real_name_str.c_str(), m);
if (r != 0) {
int e = errno;
if (e == EEXIST) {
printf("mkdir(%s, %" PRIx32 ") failed: The named file exists\n", real_name_str.c_str(),
static_cast<uint32_t>(m));
} else {
printf("mkdir(%s, %" PRIx32 ") failed: %d\n", real_name_str.c_str(),
static_cast<uint32_t>(m), e);
return false;
}
}
return true;
}
bool SysFileDeleteDirectory(const std::filesystem::path& path) {
auto real_name = get_internal_name(path);
auto real_name_str = real_name.string();
return 0 == remove(real_name_str.c_str());
}
bool SysFileDeleteFile(const std::filesystem::path& name) {
auto real_name = get_internal_name(name);
auto real_name_str = real_name.string();
return 0 == unlink(real_name_str.c_str());
}
bool SysFileFlush(sys_file_t& f) {
if (f.type == SYS_FILE_FILE && f.f != nullptr) {
return (fflush(f.f) == 0);
}
return false;
}
SysFileTimeStruct SysFileGetLastAccessTimeUtc(const std::filesystem::path& name) {
SysFileTimeStruct r {};
auto real_name = get_internal_name(name);
auto real_name_str = real_name.string();
struct stat s {};
if (0 != stat(real_name_str.c_str(), &s)) {
r.is_invalid = true;
} else {
r.is_invalid = false;
r.time = s.st_atime;
}
return r;
}
SysFileTimeStruct SysFileGetLastWriteTimeUtc(const std::filesystem::path& name) {
SysFileTimeStruct r {};
auto real_name = get_internal_name(name);
auto real_name_str = real_name.string();
struct stat s {};
if (0 != stat(real_name_str.c_str(), &s)) {
r.is_invalid = true;
} else {
r.is_invalid = false;
r.time = s.st_mtime;
}
return r;
}
void SysFileGetLastAccessAndWriteTimeUtc(const std::filesystem::path& name, SysFileTimeStruct& a,
SysFileTimeStruct& w) {
auto real_name = get_internal_name(name);
auto real_name_str = real_name.string();
struct stat s {};
if (0 != stat(real_name_str.c_str(), &s)) {
a.is_invalid = true;
w.is_invalid = true;
} else {
a.is_invalid = false;
w.is_invalid = false;
a.time = s.st_atime;
w.time = s.st_mtime;
}
}
void SysFileGetLastAccessAndWriteTimeUtc(sys_file_t& /*f*/, SysFileTimeStruct& /*a*/,
SysFileTimeStruct& /*w*/) {
EXIT("not implemented\n");
}
bool SysFileSetLastAccessTimeUtc(const std::filesystem::path& name, SysFileTimeStruct& access) {
if (access.is_invalid) {
return false;
}
auto real_name = get_internal_name(name);
auto real_name_str = real_name.string();
struct stat s {};
if (0 != stat(real_name_str.c_str(), &s)) {
return false;
}
utimbuf times {};
times.actime = access.time;
times.modtime = s.st_mtime;
return !(0 != utime(real_name_str.c_str(), &times));
// if (0 != stat(n.data(), &s))
// {
// return false;
// }
//
// times.actime += times.actime - s.st_atime;
// times.modtime += times.modtime - s.st_mtime;
//
// if (0 != utime(n.data(), &times))
// {
// return false;
// }
}
bool SysFileSetLastWriteTimeUtc(const std::filesystem::path& name, SysFileTimeStruct& write) {
if (write.is_invalid) {
return false;
}
auto real_name = get_internal_name(name);
auto real_name_str = real_name.string();
struct stat s {};
if (0 != stat(real_name_str.c_str(), &s)) {
return false;
}
utimbuf times {};
times.actime = s.st_atime;
times.modtime = write.time;
return !(0 != utime(real_name_str.c_str(), &times));
// if (0 != stat(n.data(), &s))
// {
// return false;
// }
//
// times.actime += times.actime - s.st_atime;
// times.modtime += times.modtime - s.st_mtime;
//
// if (0 != utime(n.data(), &times))
// {
// return false;
// }
}
bool SysFileSetLastAccessAndWriteTimeUtc(const std::filesystem::path& name,
SysFileTimeStruct& access, SysFileTimeStruct& write) {
if (access.is_invalid || write.is_invalid) {
return false;
}
auto real_name = get_internal_name(name);
auto real_name_str = real_name.string();
struct stat s {};
if (0 != stat(real_name_str.c_str(), &s)) {
return false;
}
utimbuf times {};
times.actime = access.time;
times.modtime = write.time;
return !(0 != utime(real_name_str.c_str(), &times));
// if (0 != stat(n.data(), &s))
// {
// return false;
// }
//
// times.actime += times.actime - s.st_atime;
// times.modtime += times.modtime - s.st_mtime;
//
// if (0 != utime(n.data(), &times))
// {
// return false;
// }
}
void SysFileFindFiles(const std::filesystem::path& /*path*/,
std::vector<sys_file_find_t>& /*out*/) {
EXIT("not implemented\n");
}
void SysFileGetDents(const std::filesystem::path& /*path*/, std::vector<sys_dir_entry_t>& /*out*/) {
EXIT("not implemented\n");
}
bool SysFileCopyFile(const std::filesystem::path& /*src*/, const std::filesystem::path& /*dst*/) {
EXIT("not implemented\n");
return false;
}
bool SysFileMoveFile(const std::filesystem::path& /*src*/, const std::filesystem::path& /*dst*/) {
EXIT("not implemented\n");
return false;
}
void SysFileRemoveReadonly(const std::filesystem::path& /*name*/) {
EXIT("not implemented\n");
}
#endif