80486DX2-66/C-bytebeat-render
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C: fix file I/O code

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This commit is contained in:
Intel A80486DX2-66 2024-09-23 00:43:25 +03:00
parent d448357608
commit 214abeb181
Signed by: 80486DX2-66
GPG Key ID: 83631EF27054609B
1 changed files with 39 additions and 5 deletions
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44
src/template.c
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@ -9,6 +9,38 @@
#include "`fwrite_le`"
#if _FILE_OFFSET_BITS == 64 || _POSIX_C_SOURCE >= 200112L
# define FSEEK_MACRO fseeko
# define FSEEK_FUNCTION_NAME "fseeko"
typedef off_t file_offset_t;
#else
# define FSEEK_MACRO fseek
# define FSEEK_FUNCTION_NAME "fseek"
typedef int file_offset_t;
#endif
#define STRINGIZE(x) #x
#define FILE_IO_NO_FAIL(function, ptr, size, nitems, stream) do { \
if (function(ptr, size, nitems, stream) != nitems) { \
/* clean up */ \
free(buffer); \
\
perror(STRINGIZE(function)); \
exit(EXIT_FAILURE); \
} \
} while (0)
#define FSEEK_NO_FAIL(...) do { \
if (FSEEK_MACRO(__VA_ARGS__) == -1) { \
perror(FSEEK_FUNCTION_NAME); \
exit(EXIT_FAILURE); \
} \
} while (0)
#define FREAD_NO_FAIL(...) FILE_IO_NO_FAIL(fread, __VA_ARGS__)
#define FWRITE_NO_FAIL(...) FILE_IO_NO_FAIL(fwrite, __VA_ARGS__)
// typedefs
typedef uintmax_t bb_counter_t;
typedef long double bb_fp_return_t;
@ -418,7 +450,7 @@ main(void)
for (size_t counter = 0; counter < REPEAT_TIMES; counter++) {
# if SEQUENTIAL_MODE
off_t position_read = header_size;
file_offset_t position_read = header_size;
calc_block_size = BLOCK_SIZE;
for (size_t seq = 0, time = 0; seq < MAX; seq++, time += BLOCK_SIZE) {
@ -428,10 +460,12 @@ main(void)
end = true;
}
fseeko(output_file, position_read, SEEK_SET);
fread(buffer, sizeof(SAMPLE_TYPE), calc_block_size, output_file);
fseeko(output_file, 0, SEEK_END);
fwrite(buffer, sizeof(SAMPLE_TYPE), calc_block_size, output_file);
FSEEK_NO_FAIL(output_file, position_read, SEEK_SET);
FREAD_NO_FAIL(buffer, sizeof(SAMPLE_TYPE), calc_block_size,
output_file);
FSEEK_NO_FAIL(output_file, 0, SEEK_END);
FWRITE_NO_FAIL(buffer, sizeof(SAMPLE_TYPE), calc_block_size,
output_file);
if (end)
break;