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refactor: extract code to open stdin for reading

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This commit is contained in:
Justin M. Keyes
2023-01-05 17:39:03 +01:00
parent 7089f33144
commit 628b717022
3 changed files with 26 additions and 27 deletions
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24
src/nvim/os/fileio.c
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@@ -167,6 +167,30 @@ FileDescriptor *file_open_fd_new(int *const error, const int fd, const int flags
return fp;
}
/// Opens standard input as a FileDescriptor.
FileDescriptor *file_open_stdin(void)
FUNC_ATTR_MALLOC FUNC_ATTR_WARN_UNUSED_RESULT
{
int error;
int stdin_dup_fd;
if (stdin_fd > 0) {
stdin_dup_fd = stdin_fd;
} else {
stdin_dup_fd = os_dup(STDIN_FILENO);
#ifdef MSWIN
// Replace the original stdin with the console input handle.
os_replace_stdin_to_conin();
#endif
}
FileDescriptor *const stdin_dup = file_open_fd_new(&error, stdin_dup_fd,
kFileReadOnly|kFileNonBlocking);
assert(stdin_dup != NULL);
if (error != 0) {
ELOG("failed to open stdin: %s", os_strerror(error));
}
return stdin_dup;
}
/// Close file and free its buffer
///
/// @param[in,out] fp File to close.