diff options
Diffstat (limited to 'src/nnn.c')
| -rw-r--r-- | src/nnn.c | 63 |
1 files changed, 63 insertions, 0 deletions
@@ -330,6 +330,9 @@ static context g_ctx[CTX_MAX] __attribute__ ((aligned)); static int ndents, cur, last, curscroll, last_curscroll, total_dents = ENTRY_INCR; static int nselected; +#ifndef NOFIFO +static int fifofd = -1; +#endif static uint idletimeout, selbufpos, lastappendpos, selbuflen; static ushort xlines, xcols; static ushort idle; @@ -350,6 +353,9 @@ static char *prefixpath; static char *plugindir; static char *sessiondir; static char *pnamebuf, *pselbuf; +#ifndef NOFIFO +static char *fifopath; +#endif static ull *ihashbmp; static struct entry *dents; static blkcnt_t ent_blocks; @@ -4667,6 +4673,40 @@ static void populate(char *path, char *lastname) last_curscroll = -1; } +#ifndef NOFIFO +static void notify_fifo() +{ + if (fifofd == -1) { + fifofd = open(fifopath, O_WRONLY|O_NONBLOCK); + if (fifofd == -1) { + if (errno != ENXIO) + /* Unexpected error, the FIFO file might have been removed */ + /* We give up FIFO notification */ + fifopath = NULL; + return; + } + } + + static char *name = NULL; + + if (dents[cur].name == name) + return; + + name = dents[cur].name; + + char path[PATH_MAX]; + size_t len = mkpath(g_ctx[cfg.curctx].c_path, ndents ? name : "", path); + + path[len - 1] = '\n'; + + ssize_t ret = write(fifofd, path, len); + + if (ret != (ssize_t)len && !(ret == -1 && (errno == EAGAIN || errno == EPIPE))) { + DPRINTF_S(strerror(errno)); + } +} +#endif + static void move_cursor(int target, int ignore_scrolloff) { int onscreen = xlines - 4; /* Leave top 2 and bottom 2 lines */ @@ -4693,6 +4733,11 @@ static void move_cursor(int target, int ignore_scrolloff) } curscroll = MIN(curscroll, MIN(cur, ndents - onscreen)); curscroll = MAX(curscroll, MAX(cur - (onscreen - 1), 0)); + +#ifndef NOFIFO + if (fifopath) + notify_fifo(); +#endif } static void handle_screen_move(enum action sel) @@ -7022,6 +7067,19 @@ int main(int argc, char *argv[]) DPRINTF_S(getenv("PWD")); +#ifndef NOFIFO + /* Create fifo */ + fifopath = getenv("NNN_FIFO"); + if (fifopath) { + if (mkfifo(fifopath, 0600) != 0 && !(errno == EEXIST && access(fifopath, W_OK) == 0)) { + xerror(); + return _FAILURE; + } + + signal(SIGPIPE, SIG_IGN); + } +#endif + #ifdef LINUX_INOTIFY /* Initialize inotify */ inotify_fd = inotify_init1(IN_NONBLOCK); @@ -7145,5 +7203,10 @@ int main(int argc, char *argv[]) haiku_close_nm(haiku_hnd); #endif +#ifndef NOFIFO + if (fifofd != -1) + close(fifofd); +#endif + return opt; } |