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authorDidier Roche <didrocks@ubuntu.com>2015-02-04 16:42:47 +0100
committerMartin Pitt <martin.pitt@ubuntu.com>2015-02-18 16:33:46 +0100
commitac6e2f0dfc2e800f01c79ecea2b811914110a7b9 (patch)
treed3ee810d7e5f657a2e3a458789f1caae9ac45947 /src/fsck/fsck.c
parent502184de0f95d3a124d4d4c77ae7a88747a0fac2 (diff)
fsckd daemon for inter-fsckd communication
Add systemd-fsckd multiplexer which accepts multiple systemd-fsck instances to connect to it and sends progress report. systemd-fsckd then computes and writes to /dev/console the number of devices currently being checked and the minimum fsck progress. This will be used for interactive progress report and cancelling in plymouth. systemd-fsckd stops on idle when no systemd-fsck is connected. Make the necessary changes to systemd-fsck to connect to the systemd-fsckd socket.
Diffstat (limited to 'src/fsck/fsck.c')
-rw-r--r--src/fsck/fsck.c88
1 files changed, 31 insertions, 57 deletions
diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c
index 78ceeb6fab..6ccb2e7340 100644
--- a/src/fsck/fsck.c
+++ b/src/fsck/fsck.c
@@ -27,6 +27,7 @@
#include <unistd.h>
#include <fcntl.h>
#include <sys/file.h>
+#include <sys/stat.h>
#include "sd-bus.h"
#include "libudev.h"
@@ -39,6 +40,8 @@
#include "fileio.h"
#include "udev-util.h"
#include "path-util.h"
+#include "socket-util.h"
+#include "fsckd/fsckd.h"
static bool arg_skip = false;
static bool arg_force = false;
@@ -132,58 +135,36 @@ static void test_files(void) {
arg_show_progress = true;
}
-static double percent(int pass, unsigned long cur, unsigned long max) {
- /* Values stolen from e2fsck */
-
- static const int pass_table[] = {
- 0, 70, 90, 92, 95, 100
+static int process_progress(int fd, dev_t device_num) {
+ _cleanup_fclose_ FILE *f = NULL;
+ usec_t last = 0;
+ _cleanup_close_ int fsckd_fd = -1;
+ static const union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = FSCKD_SOCKET_PATH,
};
- if (pass <= 0)
- return 0.0;
-
- if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0)
- return 100.0;
-
- return (double) pass_table[pass-1] +
- ((double) pass_table[pass] - (double) pass_table[pass-1]) *
- (double) cur / (double) max;
-}
-
-static int process_progress(int fd) {
- _cleanup_fclose_ FILE *console = NULL, *f = NULL;
- usec_t last = 0;
- bool locked = false;
- int clear = 0;
+ fsckd_fd = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
+ if (fsckd_fd < 0)
+ return log_warning_errno(errno, "Cannot open fsckd socket, we won't report fsck progress: %m");
+ if (connect(fsckd_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0)
+ return log_warning_errno(errno, "Cannot connect to fsckd socket, we won't report fsck progress: %m");
f = fdopen(fd, "r");
- if (!f) {
- safe_close(fd);
- return -errno;
- }
-
- console = fopen("/dev/console", "we");
- if (!console)
- return -ENOMEM;
+ if (!f)
+ return log_warning_errno(errno, "Cannot connect to fsck, we won't report fsck progress: %m");
while (!feof(f)) {
- int pass, m;
- unsigned long cur, max;
- _cleanup_free_ char *device = NULL;
- double p;
+ int pass;
+ size_t cur, max;
+ ssize_t n;
usec_t t;
+ _cleanup_free_ char *device = NULL;
+ FsckProgress progress;
if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4)
break;
- /* Only show one progress counter at max */
- if (!locked) {
- if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0)
- continue;
-
- locked = true;
- }
-
/* Only update once every 50ms */
t = now(CLOCK_MONOTONIC);
if (last + 50 * USEC_PER_MSEC > t)
@@ -191,22 +172,15 @@ static int process_progress(int fd) {
last = t;
- p = percent(pass, cur, max);
- fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m);
- fflush(console);
-
- if (m > clear)
- clear = m;
- }
-
- if (clear > 0) {
- unsigned j;
+ /* send progress to fsckd */
+ progress.devnum = device_num;
+ progress.cur = cur;
+ progress.max = max;
+ progress.pass = pass;
- fputc('\r', console);
- for (j = 0; j < (unsigned) clear; j++)
- fputc(' ', console);
- fputc('\r', console);
- fflush(console);
+ n = send(fsckd_fd, &progress, sizeof(FsckProgress), 0);
+ if (n < 0 || (size_t) n < sizeof(FsckProgress))
+ log_warning_errno(errno, "Cannot communicate fsck progress to fsckd: %m");
}
return 0;
@@ -358,7 +332,7 @@ int main(int argc, char *argv[]) {
progress_pipe[1] = safe_close(progress_pipe[1]);
if (progress_pipe[0] >= 0) {
- process_progress(progress_pipe[0]);
+ process_progress(progress_pipe[0], st.st_rdev);
progress_pipe[0] = -1;
}