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#ifndef BASE_OS_H
#define BASE_OS_H
internal string8
load_file(mem_arena *arena, const char *path)
{
string8 result = {0};
struct stat sbuf = {0};
s32 file = open(path, O_RDONLY);
if(file == -1)
{
warn("fialed to open file. path could be invalid");
return (string8){0};
}
if(fstat(file, &sbuf) == -1)
{
warn("error: fstat failed");
close(file);
return (string8){0};
}
result = PushString(arena, sbuf.st_size);
result.size = (u64)sbuf.st_size;
if(result.size != 0)
{
result.data = (u8 *)mmap(0, result.size, PROT_READ, MAP_PRIVATE, file, 0);
}
close(file);
return result;
}
internal string8
write_file(const char *path, string8 data)
{
string8 result = {0};
s32 file = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if(file == -1)
{
warn("failed to open file for writing. path could be invalid");
return (string8){0};
}
u64 written = 0;
while(written < data.size)
{
s64 err = write(file, data.data + written, data.size - written);
if(err == -1)
{
warn("write syscall failed");
close(file);
return (string8){0};
}
written += err;
}
close(file);
result = data;
return result;
}
#endif /* BASE_OS_H */
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