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26 * This is essentially a "wrapper" interface around standard C's IO
27 * library. There is two reason we implement this, 1) visual studio
28 * hearts for "secure" varations, as part of it's "Security Enhancements
29 * in the CRT" (http://msdn.microsoft.com/en-us/library/8ef0s5kh.aspx).
30 * 2) But one of the greater reasons is for the possibility of large file
31 * support in the future. I don't expect to reach the 2GB limit any
32 * time soon (mainly because that would be insane). But when it comes
33 * to adding support for some other larger IO tasks (in the test-suite,
34 * or even the QCVM we'll need it). There is also a third possibility of
35 * building .dat files directly from zip files (which would be very cool
36 * at least I think so).
41 * Visual Studio has security CRT features which I actually want to support
42 * if we ever port to Windows 8, and want GMQCC to be API safe.
44 * We handle them here, for all file-operations.
47 static void file_exception (
48 const wchar_t *expression,
49 const wchar_t *function,
54 wprintf(L"Invalid parameter dectected %s:%d %s [%s]\n", file, line, function, expression);
55 wprintf(L"Aborting ...\n");
59 static void file_init() {
60 static bool init = false;
65 _set_invalid_parameter_handler(&file_exception);
68 * Turnoff the message box for CRT asserations otherwise
69 * we don't get the error reported to the console as we should
72 _CrtSetReportMode(_CRT_ASSERT, 0);
77 FILE *file_open(const char *filename, const char *mode) {
81 return (fopen_s(&handle, filename, mode) != 0) ? NULL : handle;
84 size_t file_read(void *buffer, size_t size, size_t count, FILE *fp) {
86 return fread_s(buffer, size*count, size, count, fp);
89 int file_printf(FILE *fp, const char *format, ...) {
95 rt = vfprintf_s(fp, format, va);
105 * All other compilers/platforms that don't restrict insane policies on
106 * IO for no aparent reason.
108 FILE *file_open(const char *filename, const char *mode) {
109 return fopen(filename, mode);
112 size_t file_read(void *buffer, size_t size, size_t count, FILE *fp) {
113 return fread(buffer, size, count, fp);
116 int file_printf(FILE *fp, const char *format, ...) {
119 va_start(va, format);
120 rt = vfprintf(fp, format, va);
130 * These are implemented as just generic wrappers to keep consistency in
131 * the API. Not as macros though
133 void file_close(FILE *fp) {
134 /* Invokes file_exception on windows if fp is null */
144 /* Invokes file_exception on windows if fp is null */
145 return fwrite(buffer, size, count, fp);
148 int file_error(FILE *fp) {
149 /* Invokes file_exception on windows if fp is null */
153 int file_getc(FILE *fp) {
154 /* Invokes file_exception on windows if fp is null */
158 int file_puts(FILE *fp, const char *str) {
159 /* Invokes file_exception on windows if fp is null */
160 return fputs(str, fp);
163 int file_seek(FILE *fp, long int off, int whence) {
164 /* Invokes file_exception on windows if fp is null */
165 return fseek(fp, off, whence);
169 * Implements libc getline for systems that don't have it, which is
170 * assmed all. This works the same as getline().
172 int file_getline(char **lineptr, size_t *n, FILE *stream) {
177 if (!lineptr || !n || !stream)
180 if (!(*lineptr = (char*)mem_a((*n=64))))
188 int c = file_getc(stream);
191 *n += (*n > 16) ? *n : 64;
192 chr = *n + *lineptr - pos;
193 if (!(*lineptr = (char*)mem_r(*lineptr,*n)))
195 pos = *n - chr + *lineptr;
213 return (ret = pos - *lineptr);