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- /*
- * Copyright 2006 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "include/core/SkTypes.h"
- #include "src/core/SkOSFile.h"
- #include <errno.h>
- #include <stdio.h>
- #include <sys/stat.h>
- #ifdef SK_BUILD_FOR_UNIX
- #include <unistd.h>
- #endif
- #ifdef _WIN32
- #include <direct.h>
- #include <io.h>
- #include <vector>
- #include "src/utils/SkUTF.h"
- #endif
- #ifdef SK_BUILD_FOR_IOS
- #include "src/ports/SkOSFile_ios.h"
- #endif
- #ifdef _WIN32
- static bool is_ascii(const char* s) {
- while (char v = *s++) {
- if ((v & 0x80) != 0) {
- return false;
- }
- }
- return true;
- }
- static FILE* fopen_win(const char* utf8path, const char* perm) {
- if (is_ascii(utf8path)) {
- return fopen(utf8path, perm);
- }
- const char* ptr = utf8path;
- const char* end = utf8path + strlen(utf8path);
- size_t n = 0;
- while (ptr < end) {
- SkUnichar u = SkUTF::NextUTF8(&ptr, end);
- if (u < 0) {
- return nullptr; // malformed UTF-8
- }
- n += SkUTF::ToUTF16(u);
- }
- std::vector<uint16_t> wchars(n + 1);
- uint16_t* out = wchars.data();
- for (const char* ptr = utf8path; ptr < end;) {
- out += SkUTF::ToUTF16(SkUTF::NextUTF8(&ptr, end), out);
- }
- SkASSERT(out == &wchars[n]);
- *out = 0; // final null
- wchar_t wperms[4] = {(wchar_t)perm[0], (wchar_t)perm[1], (wchar_t)perm[2], (wchar_t)perm[3]};
- return _wfopen((wchar_t*)wchars.data(), wperms);
- }
- #endif
- FILE* sk_fopen(const char path[], SkFILE_Flags flags) {
- char perm[4] = {0, 0, 0, 0};
- char* p = perm;
- if (flags & kRead_SkFILE_Flag) {
- *p++ = 'r';
- }
- if (flags & kWrite_SkFILE_Flag) {
- *p++ = 'w';
- }
- *p = 'b';
- FILE* file = nullptr;
- #ifdef _WIN32
- file = fopen_win(path, perm);
- #else
- file = fopen(path, perm);
- #endif
- #ifdef SK_BUILD_FOR_IOS
- // if not found in default path and read-only, try to open from bundle
- if (!file && kRead_SkFILE_Flag == flags) {
- SkString bundlePath;
- if (ios_get_path_in_bundle(path, &bundlePath)) {
- file = fopen(bundlePath.c_str(), perm);
- }
- }
- #endif
- if (nullptr == file && (flags & kWrite_SkFILE_Flag)) {
- SkDEBUGF("sk_fopen: fopen(\"%s\", \"%s\") returned nullptr (errno:%d): %s\n",
- path, perm, errno, strerror(errno));
- }
- return file;
- }
- size_t sk_fgetsize(FILE* f) {
- SkASSERT(f);
- long curr = ftell(f); // remember where we are
- if (curr < 0) {
- return 0;
- }
- fseek(f, 0, SEEK_END); // go to the end
- long size = ftell(f); // record the size
- if (size < 0) {
- size = 0;
- }
- fseek(f, curr, SEEK_SET); // go back to our prev location
- return size;
- }
- size_t sk_fwrite(const void* buffer, size_t byteCount, FILE* f) {
- SkASSERT(f);
- return fwrite(buffer, 1, byteCount, f);
- }
- void sk_fflush(FILE* f) {
- SkASSERT(f);
- fflush(f);
- }
- void sk_fsync(FILE* f) {
- #if !defined(_WIN32) && !defined(SK_BUILD_FOR_ANDROID) && !defined(__UCLIBC__) \
- && !defined(_NEWLIB_VERSION)
- int fd = fileno(f);
- fsync(fd);
- #endif
- }
- size_t sk_ftell(FILE* f) {
- long curr = ftell(f);
- if (curr < 0) {
- return 0;
- }
- return curr;
- }
- void sk_fclose(FILE* f) {
- if (f) {
- fclose(f);
- }
- }
- bool sk_isdir(const char *path) {
- struct stat status;
- if (0 != stat(path, &status)) {
- #ifdef SK_BUILD_FOR_IOS
- // check the bundle directory if not in default path
- SkString bundlePath;
- if (ios_get_path_in_bundle(path, &bundlePath)) {
- if (0 != stat(bundlePath.c_str(), &status)) {
- return false;
- }
- }
- #else
- return false;
- #endif
- }
- return SkToBool(status.st_mode & S_IFDIR);
- }
- bool sk_mkdir(const char* path) {
- if (sk_isdir(path)) {
- return true;
- }
- if (sk_exists(path)) {
- fprintf(stderr,
- "sk_mkdir: path '%s' already exists but is not a directory\n",
- path);
- return false;
- }
- int retval;
- #ifdef _WIN32
- retval = _mkdir(path);
- #else
- retval = mkdir(path, 0777);
- #endif
- return 0 == retval;
- }
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