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os file IO fixes linux

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This commit is contained in:
Daniel Ledda
2026-02-25 08:36:40 +01:00
parent 6932a7a142
commit 49ce94a6ab
2 changed files with 13 additions and 11 deletions
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4
os.h
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@@ -11,8 +11,8 @@ void os_free(void *ptr, uint64 freeSize);
// ### File IO ### // ### File IO ###
string os_readEntireFile(Arena *arena, string filename); string os_readEntireFile(Arena *arena, string filename);
bool os_writeEntireFile(Arena *arena, string filename, const byte *contents, uint64 contentsLength); bool os_writeEntireFile(string filename, const byte *contents, uint64 contentsLength);
bool os_fileAppend(Arena *arena, string filename, const byte *contents, uint64 contentsLength); bool os_fileAppend(string filename, const byte *contents, uint64 contentsLength);
// ### Standard IO ### // ### Standard IO ###
void os_print(StdStream target, const char *fmt, va_list argList); void os_print(StdStream target, const char *fmt, va_list argList);

20
os_linux.c
View File

@@ -46,7 +46,7 @@ string os_readEntireFile(Arena *arena, string filename) {
close(input); close(input);
if (bytesRead == -1) { if (bytesRead == -1) {
arenaPopTo(arena, readBuffer.str); arenaPopTo(arena, readBuffer.str);
return s(""); readBuffer = s("");
} }
} else { } else {
readBuffer = s(""); readBuffer = s("");
@@ -56,35 +56,37 @@ string os_readEntireFile(Arena *arena, string filename) {
return readBuffer; return readBuffer;
} }
bool os_writeEntireFile(Arena *arena, string filename, const byte *contents, uint64 contentsLength) { bool os_writeEntireFile(string filename, const byte *contents, uint64 contentsLength) {
Scratch temp = scratchStart(&arena, 1); Scratch temp = scratchStart(NULL, 0);
bool result = false; bool result = false;
int output = open(cstring(temp.arena, filename), O_WRONLY); struct stat st;
stat((char *)filename.str, &st);
int output = open(cstring(temp.arena, filename), O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR);
if (output) { if (output) {
int64 bytesWritten = write(output, contents, contentsLength); int64 bytesWritten = write(output, contents, contentsLength);
if (bytesWritten != -1) { if (bytesWritten != -1) {
result = true; result = true;
} }
close(output);
} }
close(output);
scratchEnd(temp); scratchEnd(temp);
return result; return result;
} }
bool os_fileAppend(Arena *arena, string filename, const byte *contents, uint64 contentsLength) { bool os_fileAppend(string filename, const byte *contents, uint64 contentsLength) {
Scratch temp = scratchStart(&arena, 1); Scratch temp = scratchStart(NULL, 0);
bool result = false; bool result = false;
int output = open(cstring(temp.arena, filename), O_APPEND); int output = open(cstring(temp.arena, filename), O_WRONLY | O_APPEND);
if (output) { if (output) {
int bytesWritten = write(output, contents, contentsLength); int bytesWritten = write(output, contents, contentsLength);
if (bytesWritten != -1) { if (bytesWritten != -1) {
result = true; result = true;
} }
close(output);
} }
close(output);
scratchEnd(temp); scratchEnd(temp);
return result; return result;