mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-29 14:31:04 +00:00
90 lines
3.5 KiB
C++
90 lines
3.5 KiB
C++
// Copyright (c) 2016 Google Inc.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and/or associated documentation files (the
|
|
// "Materials"), to deal in the Materials without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Materials, and to
|
|
// permit persons to whom the Materials are furnished to do so, subject to
|
|
// the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Materials.
|
|
//
|
|
// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
|
|
// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
|
|
// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
|
|
// https://www.khronos.org/registry/
|
|
//
|
|
// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
|
|
|
|
#ifndef LIBSPIRV_TOOLS_IO_H_
|
|
#define LIBSPIRV_TOOLS_IO_H_
|
|
|
|
#include <cstdint>
|
|
#include <cstdio>
|
|
#include <vector>
|
|
|
|
// Appends the content from the file named as |filename| to |data|, assuming
|
|
// each element in the file is of type |T|. The file is opened with the given
|
|
// |mode|. If |filename| is nullptr or "-", reads from the standard input. If
|
|
// any error occurs, writes error messages to standard error and returns false.
|
|
template <typename T>
|
|
bool ReadFile(const char* filename, const char* mode, std::vector<T>* data) {
|
|
const int buf_size = 1024;
|
|
const bool use_file = filename && strcmp("-", filename);
|
|
if (FILE* fp = (use_file ? fopen(filename, mode) : stdin)) {
|
|
T buf[buf_size];
|
|
while (size_t len = fread(buf, sizeof(T), buf_size, fp)) {
|
|
data->insert(data->end(), buf, buf + len);
|
|
}
|
|
if (ftell(fp) == -1L) {
|
|
if (ferror(fp)) {
|
|
fprintf(stderr, "error: error reading file '%s'\n", filename);
|
|
return false;
|
|
}
|
|
} else {
|
|
if (ftell(fp) % sizeof(T)) {
|
|
fprintf(stderr, "error: corrupted word found in file '%s'\n", filename);
|
|
return false;
|
|
}
|
|
}
|
|
if (use_file) fclose(fp);
|
|
} else {
|
|
fprintf(stderr, "error: file does not exist '%s'\n", filename);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Writes the given |data| into the file named as |filename| using the given
|
|
// |mode|, assuming |data| is an array of |count| elements of type |T|. If
|
|
// |filename| is nullptr or "-", writes to standard output. If any error occurs,
|
|
// returns false and outputs error message to standard error.
|
|
template <typename T>
|
|
bool WriteFile(const char* filename, const char* mode, const T* data,
|
|
size_t count) {
|
|
const bool use_stdout =
|
|
!filename || (filename[0] == '-' && filename[1] == '\0');
|
|
if (FILE* fp = (use_stdout ? stdout : fopen(filename, mode))) {
|
|
size_t written = fwrite(data, sizeof(T), count, fp);
|
|
if (count != written) {
|
|
fprintf(stderr, "error: could not write to file '%s'\n", filename);
|
|
return false;
|
|
}
|
|
if (!use_stdout) fclose(fp);
|
|
} else {
|
|
fprintf(stderr, "error: could not open file '%s'\n", filename);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#endif // LIBSPIRV_TOOLS_IO_H_
|