##// END OF EJS Templates
revset: handle wdir() in `roots()`...
revset: handle wdir() in `roots()` This is already handled in `heads()`, and both are needed to determine if a set is contiguous. I'm guessing the `0 <= p` check was to try to filter out the null revision, but it looks like that comes through in the corner case of a new repo with no commits. But that was already the case, as shown by the tests. Before (on a clone of hg): $ python3.8 hg perf::revset --config extensions.perf=contrib/perf.py 'roots(all())' ! wall 0.059301 comb 0.040000 user 0.040000 sys 0.000000 (best of 100) After: $ python3.8 hg perf::revset --config extensions.perf=contrib/perf.py 'roots(all())' ! wall 0.059387 comb 0.060000 user 0.060000 sys 0.000000 (best of 100)

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sendfds.c
51 lines | 1.3 KiB | text/x-c | CLexer
/*
* Utility to send fds via Unix domain socket
*
* Copyright 2011, 2018 Yuya Nishihara <yuya@tcha.org>
*
* This software may be used and distributed according to the terms of the
* GNU General Public License version 2 or any later version.
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#define MAX_FD_LEN 10
/*
* Sends the given fds with 1-byte dummy payload.
*
* Returns the number of bytes sent on success, -1 on error and errno is set
* appropriately.
*/
ssize_t sendfds(int sockfd, const int *fds, size_t fdlen)
{
char dummy[1] = {0};
struct iovec iov = {dummy, sizeof(dummy)};
char fdbuf[CMSG_SPACE(sizeof(fds[0]) * MAX_FD_LEN)];
struct msghdr msgh;
struct cmsghdr *cmsg;
/* just use a fixed-size buffer since we'll never send tons of fds */
if (fdlen > MAX_FD_LEN) {
errno = EINVAL;
return -1;
}
memset(&msgh, 0, sizeof(msgh));
msgh.msg_iov = &iov;
msgh.msg_iovlen = 1;
msgh.msg_control = fdbuf;
msgh.msg_controllen = CMSG_SPACE(sizeof(fds[0]) * fdlen);
cmsg = CMSG_FIRSTHDR(&msgh);
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_RIGHTS;
cmsg->cmsg_len = CMSG_LEN(sizeof(fds[0]) * fdlen);
memcpy(CMSG_DATA(cmsg), fds, sizeof(fds[0]) * fdlen);
msgh.msg_controllen = cmsg->cmsg_len;
return sendmsg(sockfd, &msgh, 0);
}