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Simplify

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This commit is contained in:
Rui Ueyama 2023-12-06 19:51:22 +09:00
parent f04aebf1e0
commit 663ac74610
1 changed files with 8 additions and 15 deletions
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23
common/output-file-unix.h
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@ -14,19 +14,6 @@ inline u32 get_umask() {
return orig_umask;
}
// Resize and allocate space for a file.
// File size should be 0 before calling, as this function does not handle shrinking.
template <typename Context>
static void allocate_file(Context &ctx, int fd, i64 filesize) {
#ifdef __linux__
if (fallocate(fd, 0, 0, filesize) == 0)
return;
#endif
if (ftruncate(fd, filesize) == -1)
Fatal(ctx) << "ftruncate failed: " << errno_string();
}
template <typename Context>
static std::pair<i64, char *>
open_or_create_file(Context &ctx, std::string path, i64 filesize, i64 perm) {
@ -52,10 +39,16 @@ open_or_create_file(Context &ctx, std::string path, i64 filesize, i64 perm) {
Fatal(ctx) << "cannot open " << path2 << ": " << errno_string();
}
allocate_file(ctx, fd, filesize);
if (fchmod(fd, (perm & ~get_umask())) == -1)
Fatal(ctx) << "fchmod failed: " << errno_string();
#ifdef __linux__
if (fallocate(fd, 0, 0, filesize) == 0)
return {fd, path2};
#endif
if (ftruncate(fd, filesize) == -1)
Fatal(ctx) << "ftruncate failed: " << errno_string();
return {fd, path2};
}