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LibC: Implemented getc_unlocked, stubbed flockfile

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Implemented getc_unlocked and stubbed out flockfile() and funlockfile().
This commit is contained in:
Brandon Scott 2019-11-16 04:39:36 -06:00 committed by Andreas Kling
parent bda36853c9
commit 3069988a75
Notes: sideshowbarker 2024-07-19 11:11:57 +09:00 
Author: https://github.com/xeons
Commit: https://github.com/SerenityOS/serenity/commit/3069988a757
Pull-request: https://github.com/SerenityOS/serenity/pull/788
Reviewed-by: https://github.com/awesomekling ✅
2 changed files with 24 additions and 4 deletions
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25
Libraries/LibC/stdio.cpp
View File

@ -140,12 +140,17 @@ int getc(FILE* stream)
return fgetc(stream);
}
int getc_unlocked(FILE* stream)
{
return fgetc(stream);
}
int getchar()
{
return getc(stdin);
}
ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream)
ssize_t getdelim(char** lineptr, size_t* n, int delim, FILE* stream)
{
char *ptr, *eptr;
if (*lineptr == nullptr || *n == 0) {
@ -170,7 +175,7 @@ ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream)
return ptr - *lineptr;
}
if (ptr + 2 >= eptr) {
char *nbuf;
char* nbuf;
size_t nbuf_sz = *n * 2;
ssize_t d = ptr - *lineptr;
if ((nbuf = static_cast<char*>(realloc(*lineptr, nbuf_sz))) == nullptr) {
@ -184,7 +189,7 @@ ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream)
}
}
ssize_t getline(char **lineptr, size_t *n, FILE *stream)
ssize_t getline(char** lineptr, size_t* n, FILE* stream)
{
return getdelim(lineptr, n, '\n', stream);
}
@ -413,7 +418,7 @@ int vsnprintf(char* buffer, size_t size, const char* fmt, va_list ap)
__vsnprintf_space_remaining = size;
int ret = printf_internal(sized_buffer_putch, buffer, fmt, ap);
if (__vsnprintf_space_remaining) {
buffer[ret] = '\0';
buffer[ret] = '\0';
}
return ret;
}
@ -616,6 +621,18 @@ int vfscanf(FILE* stream, const char* fmt, va_list ap)
return vsscanf(buffer, fmt, ap);
}
void flockfile(FILE* filehandle)
{
(void)filehandle;
dbgprintf("FIXME: Implement flockfile()\n");
}
void funlockfile(FILE* filehandle)
{
(void)filehandle;
dbgprintf("FIXME: Implement funlockfile()\n");
}
FILE* tmpfile()
{
dbgprintf("FIXME: Implement tmpfile()\n");

3
Libraries/LibC/stdio.h
View File

@ -56,6 +56,7 @@ int fputc(int ch, FILE*);
int fileno(FILE*);
int fgetc(FILE*);
int getc(FILE*);
int getc_unlocked(FILE* stream);
int getchar();
ssize_t getdelim(char**, size_t*, int, FILE*);
ssize_t getline(char**, size_t*, FILE*);
@ -64,6 +65,8 @@ int remove(const char* pathname);
FILE* fdopen(int fd, const char* mode);
FILE* fopen(const char* pathname, const char* mode);
FILE* freopen(const char* pathname, const char* mode, FILE*);
void flockfile(FILE* filehandle);
void funlockfile(FILE* filehandle);
int fclose(FILE*);
void rewind(FILE*);
void clearerr(FILE*);