mirror of
https://github.com/tmux/tmux.git
synced 2025-09-01 20:57:00 +00:00
Move file handling protocol stuff all into file.c so it can be reused
more easily.
This commit is contained in:
nicm
434
file.c
434
file.c
@ -30,10 +30,17 @@
|
||||
|
||||
#include "tmux.h"
|
||||
|
||||
/*
|
||||
* IPC file handling. Both client and server use the same data structures
|
||||
* (client_file and client_files) to store list of active files. Most functions
|
||||
* are for use either in client or server but not both.
|
||||
*/
|
||||
|
||||
static int file_next_stream = 3;
|
||||
|
||||
RB_GENERATE(client_files, client_file, entry, file_cmp);
|
||||
|
||||
/* Get path for file, either as given or from working directory. */
|
||||
static char *
|
||||
file_get_path(struct client *c, const char *file)
|
||||
{
|
||||
@ -46,6 +53,7 @@ file_get_path(struct client *c, const char *file)
|
||||
return (path);
|
||||
}
|
||||
|
||||
/* Tree comparison function. */
|
||||
int
|
||||
file_cmp(struct client_file *cf1, struct client_file *cf2)
|
||||
{
|
||||
@ -56,11 +64,47 @@ file_cmp(struct client_file *cf1, struct client_file *cf2)
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Create a file object in the client process - the peer is the server to send
|
||||
* messages to. Check callback is fired when the file is finished with so the
|
||||
* process can decide if it needs to exit (if it is waiting for files to
|
||||
* flush).
|
||||
*/
|
||||
struct client_file *
|
||||
file_create(struct client *c, int stream, client_file_cb cb, void *cbdata)
|
||||
file_create_with_peer(struct tmuxpeer *peer, struct client_files *files,
|
||||
int stream, client_file_cb cb, void *cbdata)
|
||||
{
|
||||
struct client_file *cf;
|
||||
|
||||
cf = xcalloc(1, sizeof *cf);
|
||||
cf->c = NULL;
|
||||
cf->references = 1;
|
||||
cf->stream = stream;
|
||||
|
||||
cf->buffer = evbuffer_new();
|
||||
if (cf->buffer == NULL)
|
||||
fatalx("out of memory");
|
||||
|
||||
cf->cb = cb;
|
||||
cf->data = cbdata;
|
||||
|
||||
cf->peer = peer;
|
||||
cf->tree = files;
|
||||
RB_INSERT(client_files, files, cf);
|
||||
|
||||
return (cf);
|
||||
}
|
||||
|
||||
/* Create a file object in the server, communicating with the given client. */
|
||||
struct client_file *
|
||||
file_create_with_client(struct client *c, int stream, client_file_cb cb,
|
||||
void *cbdata)
|
||||
{
|
||||
struct client_file *cf;
|
||||
|
||||
if (c != NULL && (c->flags & CLIENT_ATTACHED))
|
||||
c = NULL;
|
||||
|
||||
cf = xcalloc(1, sizeof *cf);
|
||||
cf->c = c;
|
||||
cf->references = 1;
|
||||
@ -74,6 +118,8 @@ file_create(struct client *c, int stream, client_file_cb cb, void *cbdata)
|
||||
cf->data = cbdata;
|
||||
|
||||
if (cf->c != NULL) {
|
||||
cf->peer = cf->c->peer;
|
||||
cf->tree = &cf->c->files;
|
||||
RB_INSERT(client_files, &cf->c->files, cf);
|
||||
cf->c->references++;
|
||||
}
|
||||
@ -81,6 +127,7 @@ file_create(struct client *c, int stream, client_file_cb cb, void *cbdata)
|
||||
return (cf);
|
||||
}
|
||||
|
||||
/* Free a file. */
|
||||
void
|
||||
file_free(struct client_file *cf)
|
||||
{
|
||||
@ -90,13 +137,15 @@ file_free(struct client_file *cf)
|
||||
evbuffer_free(cf->buffer);
|
||||
free(cf->path);
|
||||
|
||||
if (cf->c != NULL) {
|
||||
RB_REMOVE(client_files, &cf->c->files, cf);
|
||||
if (cf->tree != NULL)
|
||||
RB_REMOVE(client_files, cf->tree, cf);
|
||||
if (cf->c != NULL)
|
||||
server_client_unref(cf->c);
|
||||
}
|
||||
|
||||
free(cf);
|
||||
}
|
||||
|
||||
/* Event to fire the done callback. */
|
||||
static void
|
||||
file_fire_done_cb(__unused int fd, __unused short events, void *arg)
|
||||
{
|
||||
@ -108,21 +157,22 @@ file_fire_done_cb(__unused int fd, __unused short events, void *arg)
|
||||
file_free(cf);
|
||||
}
|
||||
|
||||
/* Add an event to fire the done callback (used by the server). */
|
||||
void
|
||||
file_fire_done(struct client_file *cf)
|
||||
{
|
||||
event_once(-1, EV_TIMEOUT, file_fire_done_cb, cf, NULL);
|
||||
}
|
||||
|
||||
/* Fire the read callback. */
|
||||
void
|
||||
file_fire_read(struct client_file *cf)
|
||||
{
|
||||
struct client *c = cf->c;
|
||||
|
||||
if (cf->cb != NULL)
|
||||
cf->cb(c, cf->path, cf->error, 0, cf->buffer, cf->data);
|
||||
cf->cb(cf->c, cf->path, cf->error, 0, cf->buffer, cf->data);
|
||||
}
|
||||
|
||||
/* Can this file be printed to? */
|
||||
int
|
||||
file_can_print(struct client *c)
|
||||
{
|
||||
@ -133,6 +183,7 @@ file_can_print(struct client *c)
|
||||
return (1);
|
||||
}
|
||||
|
||||
/* Print a message to a file. */
|
||||
void
|
||||
file_print(struct client *c, const char *fmt, ...)
|
||||
{
|
||||
@ -143,6 +194,7 @@ file_print(struct client *c, const char *fmt, ...)
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
/* Print a message to a file. */
|
||||
void
|
||||
file_vprint(struct client *c, const char *fmt, va_list ap)
|
||||
{
|
||||
@ -154,7 +206,7 @@ file_vprint(struct client *c, const char *fmt, va_list ap)
|
||||
|
||||
find.stream = 1;
|
||||
if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) {
|
||||
cf = file_create(c, 1, NULL, NULL);
|
||||
cf = file_create_with_client(c, 1, NULL, NULL);
|
||||
cf->path = xstrdup("-");
|
||||
|
||||
evbuffer_add_vprintf(cf->buffer, fmt, ap);
|
||||
@ -169,6 +221,7 @@ file_vprint(struct client *c, const char *fmt, va_list ap)
|
||||
}
|
||||
}
|
||||
|
||||
/* Print a buffer to a file. */
|
||||
void
|
||||
file_print_buffer(struct client *c, void *data, size_t size)
|
||||
{
|
||||
@ -180,7 +233,7 @@ file_print_buffer(struct client *c, void *data, size_t size)
|
||||
|
||||
find.stream = 1;
|
||||
if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) {
|
||||
cf = file_create(c, 1, NULL, NULL);
|
||||
cf = file_create_with_client(c, 1, NULL, NULL);
|
||||
cf->path = xstrdup("-");
|
||||
|
||||
evbuffer_add(cf->buffer, data, size);
|
||||
@ -195,6 +248,7 @@ file_print_buffer(struct client *c, void *data, size_t size)
|
||||
}
|
||||
}
|
||||
|
||||
/* Report an error to a file. */
|
||||
void
|
||||
file_error(struct client *c, const char *fmt, ...)
|
||||
{
|
||||
@ -209,7 +263,7 @@ file_error(struct client *c, const char *fmt, ...)
|
||||
|
||||
find.stream = 2;
|
||||
if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) {
|
||||
cf = file_create(c, 2, NULL, NULL);
|
||||
cf = file_create_with_client(c, 2, NULL, NULL);
|
||||
cf->path = xstrdup("-");
|
||||
|
||||
evbuffer_add_vprintf(cf->buffer, fmt, ap);
|
||||
@ -226,19 +280,21 @@ file_error(struct client *c, const char *fmt, ...)
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
/* Write data to a file. */
|
||||
void
|
||||
file_write(struct client *c, const char *path, int flags, const void *bdata,
|
||||
size_t bsize, client_file_cb cb, void *cbdata)
|
||||
{
|
||||
struct client_file *cf;
|
||||
FILE *f;
|
||||
struct msg_write_open *msg;
|
||||
size_t msglen;
|
||||
int fd = -1;
|
||||
u_int stream = file_next_stream++;
|
||||
FILE *f;
|
||||
const char *mode;
|
||||
|
||||
if (strcmp(path, "-") == 0) {
|
||||
cf = file_create(c, file_next_stream++, cb, cbdata);
|
||||
cf = file_create_with_client(c, stream, cb, cbdata);
|
||||
cf->path = xstrdup("-");
|
||||
|
||||
fd = STDOUT_FILENO;
|
||||
@ -251,7 +307,7 @@ file_write(struct client *c, const char *path, int flags, const void *bdata,
|
||||
goto skip;
|
||||
}
|
||||
|
||||
cf = file_create(c, file_next_stream++, cb, cbdata);
|
||||
cf = file_create_with_client(c, stream, cb, cbdata);
|
||||
cf->path = file_get_path(c, path);
|
||||
|
||||
if (c == NULL || c->flags & CLIENT_ATTACHED) {
|
||||
@ -286,7 +342,7 @@ skip:
|
||||
msg->fd = fd;
|
||||
msg->flags = flags;
|
||||
memcpy(msg + 1, cf->path, msglen - sizeof *msg);
|
||||
if (proc_send(c->peer, MSG_WRITE_OPEN, -1, msg, msglen) != 0) {
|
||||
if (proc_send(cf->peer, MSG_WRITE_OPEN, -1, msg, msglen) != 0) {
|
||||
free(msg);
|
||||
cf->error = EINVAL;
|
||||
goto done;
|
||||
@ -298,18 +354,21 @@ done:
|
||||
file_fire_done(cf);
|
||||
}
|
||||
|
||||
/* Read a file. */
|
||||
void
|
||||
file_read(struct client *c, const char *path, client_file_cb cb, void *cbdata)
|
||||
{
|
||||
struct client_file *cf;
|
||||
FILE *f;
|
||||
struct msg_read_open *msg;
|
||||
size_t msglen, size;
|
||||
size_t msglen;
|
||||
int fd = -1;
|
||||
u_int stream = file_next_stream++;
|
||||
FILE *f;
|
||||
size_t size;
|
||||
char buffer[BUFSIZ];
|
||||
|
||||
if (strcmp(path, "-") == 0) {
|
||||
cf = file_create(c, file_next_stream++, cb, cbdata);
|
||||
cf = file_create_with_client(c, stream, cb, cbdata);
|
||||
cf->path = xstrdup("-");
|
||||
|
||||
fd = STDIN_FILENO;
|
||||
@ -322,7 +381,7 @@ file_read(struct client *c, const char *path, client_file_cb cb, void *cbdata)
|
||||
goto skip;
|
||||
}
|
||||
|
||||
cf = file_create(c, file_next_stream++, cb, cbdata);
|
||||
cf = file_create_with_client(c, stream, cb, cbdata);
|
||||
cf->path = file_get_path(c, path);
|
||||
|
||||
if (c == NULL || c->flags & CLIENT_ATTACHED) {
|
||||
@ -358,7 +417,7 @@ skip:
|
||||
msg->stream = cf->stream;
|
||||
msg->fd = fd;
|
||||
memcpy(msg + 1, cf->path, msglen - sizeof *msg);
|
||||
if (proc_send(c->peer, MSG_READ_OPEN, -1, msg, msglen) != 0) {
|
||||
if (proc_send(cf->peer, MSG_READ_OPEN, -1, msg, msglen) != 0) {
|
||||
free(msg);
|
||||
cf->error = EINVAL;
|
||||
goto done;
|
||||
@ -370,21 +429,21 @@ done:
|
||||
file_fire_done(cf);
|
||||
}
|
||||
|
||||
/* Push event, fired if there is more writing to be done. */
|
||||
static void
|
||||
file_push_cb(__unused int fd, __unused short events, void *arg)
|
||||
{
|
||||
struct client_file *cf = arg;
|
||||
struct client *c = cf->c;
|
||||
|
||||
if (~c->flags & CLIENT_DEAD)
|
||||
if (cf->c == NULL || ~cf->c->flags & CLIENT_DEAD)
|
||||
file_push(cf);
|
||||
file_free(cf);
|
||||
}
|
||||
|
||||
/* Push uwritten data to the client for a file, if it will accept it. */
|
||||
void
|
||||
file_push(struct client_file *cf)
|
||||
{
|
||||
struct client *c = cf->c;
|
||||
struct msg_write_data *msg;
|
||||
size_t msglen, sent, left;
|
||||
struct msg_write_close close;
|
||||
@ -400,21 +459,344 @@ file_push(struct client_file *cf)
|
||||
msg = xrealloc(msg, msglen);
|
||||
msg->stream = cf->stream;
|
||||
memcpy(msg + 1, EVBUFFER_DATA(cf->buffer), sent);
|
||||
if (proc_send(c->peer, MSG_WRITE, -1, msg, msglen) != 0)
|
||||
if (proc_send(cf->peer, MSG_WRITE, -1, msg, msglen) != 0)
|
||||
break;
|
||||
evbuffer_drain(cf->buffer, sent);
|
||||
|
||||
left = EVBUFFER_LENGTH(cf->buffer);
|
||||
log_debug("%s: file %d sent %zu, left %zu", c->name, cf->stream,
|
||||
sent, left);
|
||||
log_debug("file %d sent %zu, left %zu", cf->stream, sent, left);
|
||||
}
|
||||
if (left != 0) {
|
||||
cf->references++;
|
||||
event_once(-1, EV_TIMEOUT, file_push_cb, cf, NULL);
|
||||
} else if (cf->stream > 2) {
|
||||
close.stream = cf->stream;
|
||||
proc_send(c->peer, MSG_WRITE_CLOSE, -1, &close, sizeof close);
|
||||
proc_send(cf->peer, MSG_WRITE_CLOSE, -1, &close, sizeof close);
|
||||
file_fire_done(cf);
|
||||
}
|
||||
free(msg);
|
||||
}
|
||||
|
||||
/* Client file write error callback. */
|
||||
static void
|
||||
file_write_error_callback(__unused struct bufferevent *bev, __unused short what,
|
||||
void *arg)
|
||||
{
|
||||
struct client_file *cf = arg;
|
||||
|
||||
log_debug("write error file %d", cf->stream);
|
||||
|
||||
if (cf->cb != NULL)
|
||||
cf->cb(NULL, NULL, 0, -1, NULL, cf->data);
|
||||
|
||||
bufferevent_free(cf->event);
|
||||
cf->event = NULL;
|
||||
|
||||
close(cf->fd);
|
||||
cf->fd = -1;
|
||||
}
|
||||
|
||||
/* Client file write callback. */
|
||||
static void
|
||||
file_write_callback(__unused struct bufferevent *bev, void *arg)
|
||||
{
|
||||
struct client_file *cf = arg;
|
||||
|
||||
log_debug("write check file %d", cf->stream);
|
||||
|
||||
if (cf->cb != NULL)
|
||||
cf->cb(NULL, NULL, 0, -1, NULL, cf->data);
|
||||
|
||||
if (cf->closed && EVBUFFER_LENGTH(cf->event->output) == 0) {
|
||||
bufferevent_free(cf->event);
|
||||
close(cf->fd);
|
||||
RB_REMOVE(client_files, cf->tree, cf);
|
||||
file_free(cf);
|
||||
}
|
||||
}
|
||||
|
||||
/* Handle a file write open message (client). */
|
||||
void
|
||||
file_write_open(struct client_files *files, struct tmuxpeer *peer,
|
||||
struct imsg *imsg, int allow_streams, int close_received,
|
||||
client_file_cb cb, void *cbdata)
|
||||
{
|
||||
struct msg_write_open *msg = imsg->data;
|
||||
size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
const char *path;
|
||||
struct msg_write_ready reply;
|
||||
struct client_file find, *cf;
|
||||
const int flags = O_NONBLOCK|O_WRONLY|O_CREAT;
|
||||
int error = 0;
|
||||
|
||||
if (msglen < sizeof *msg)
|
||||
fatalx("bad MSG_WRITE_OPEN size");
|
||||
if (msglen == sizeof *msg)
|
||||
path = "-";
|
||||
else
|
||||
path = (const char *)(msg + 1);
|
||||
log_debug("open write file %d %s", msg->stream, path);
|
||||
|
||||
find.stream = msg->stream;
|
||||
if ((cf = RB_FIND(client_files, files, &find)) != NULL) {
|
||||
error = EBADF;
|
||||
goto reply;
|
||||
}
|
||||
cf = file_create_with_peer(peer, files, msg->stream, cb, cbdata);
|
||||
if (cf->closed) {
|
||||
error = EBADF;
|
||||
goto reply;
|
||||
}
|
||||
|
||||
cf->fd = -1;
|
||||
if (msg->fd == -1)
|
||||
cf->fd = open(path, msg->flags|flags, 0644);
|
||||
else if (allow_streams) {
|
||||
if (msg->fd != STDOUT_FILENO && msg->fd != STDERR_FILENO)
|
||||
errno = EBADF;
|
||||
else {
|
||||
cf->fd = dup(msg->fd);
|
||||
if (close_received)
|
||||
close(msg->fd); /* can only be used once */
|
||||
}
|
||||
} else
|
||||
errno = EBADF;
|
||||
if (cf->fd == -1) {
|
||||
error = errno;
|
||||
goto reply;
|
||||
}
|
||||
|
||||
cf->event = bufferevent_new(cf->fd, NULL, file_write_callback,
|
||||
file_write_error_callback, cf);
|
||||
bufferevent_enable(cf->event, EV_WRITE);
|
||||
goto reply;
|
||||
|
||||
reply:
|
||||
reply.stream = msg->stream;
|
||||
reply.error = error;
|
||||
proc_send(peer, MSG_WRITE_READY, -1, &reply, sizeof reply);
|
||||
}
|
||||
|
||||
/* Handle a file write data message (client). */
|
||||
void
|
||||
file_write_data(struct client_files *files, struct imsg *imsg)
|
||||
{
|
||||
struct msg_write_data *msg = imsg->data;
|
||||
size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
struct client_file find, *cf;
|
||||
size_t size = msglen - sizeof *msg;
|
||||
|
||||
if (msglen < sizeof *msg)
|
||||
fatalx("bad MSG_WRITE size");
|
||||
find.stream = msg->stream;
|
||||
if ((cf = RB_FIND(client_files, files, &find)) == NULL)
|
||||
fatalx("unknown stream number");
|
||||
log_debug("write %zu to file %d", size, cf->stream);
|
||||
|
||||
if (cf->event != NULL)
|
||||
bufferevent_write(cf->event, msg + 1, size);
|
||||
}
|
||||
|
||||
/* Handle a file write close message (client). */
|
||||
void
|
||||
file_write_close(struct client_files *files, struct imsg *imsg)
|
||||
{
|
||||
struct msg_write_close *msg = imsg->data;
|
||||
size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
struct client_file find, *cf;
|
||||
|
||||
if (msglen != sizeof *msg)
|
||||
fatalx("bad MSG_WRITE_CLOSE size");
|
||||
find.stream = msg->stream;
|
||||
if ((cf = RB_FIND(client_files, files, &find)) == NULL)
|
||||
fatalx("unknown stream number");
|
||||
log_debug("close file %d", cf->stream);
|
||||
|
||||
if (cf->event == NULL || EVBUFFER_LENGTH(cf->event->output) == 0) {
|
||||
if (cf->event != NULL)
|
||||
bufferevent_free(cf->event);
|
||||
if (cf->fd != -1)
|
||||
close(cf->fd);
|
||||
RB_REMOVE(client_files, files, cf);
|
||||
file_free(cf);
|
||||
}
|
||||
}
|
||||
|
||||
/* Client file read error callback. */
|
||||
static void
|
||||
file_read_error_callback(__unused struct bufferevent *bev, __unused short what,
|
||||
void *arg)
|
||||
{
|
||||
struct client_file *cf = arg;
|
||||
struct msg_read_done msg;
|
||||
|
||||
log_debug("read error file %d", cf->stream);
|
||||
|
||||
msg.stream = cf->stream;
|
||||
msg.error = 0;
|
||||
proc_send(cf->peer, MSG_READ_DONE, -1, &msg, sizeof msg);
|
||||
|
||||
bufferevent_free(cf->event);
|
||||
close(cf->fd);
|
||||
RB_REMOVE(client_files, cf->tree, cf);
|
||||
file_free(cf);
|
||||
}
|
||||
|
||||
/* Client file read callback. */
|
||||
static void
|
||||
file_read_callback(__unused struct bufferevent *bev, void *arg)
|
||||
{
|
||||
struct client_file *cf = arg;
|
||||
void *bdata;
|
||||
size_t bsize;
|
||||
struct msg_read_data *msg;
|
||||
size_t msglen;
|
||||
|
||||
msg = xmalloc(sizeof *msg);
|
||||
for (;;) {
|
||||
bdata = EVBUFFER_DATA(cf->event->input);
|
||||
bsize = EVBUFFER_LENGTH(cf->event->input);
|
||||
|
||||
if (bsize == 0)
|
||||
break;
|
||||
if (bsize > MAX_IMSGSIZE - IMSG_HEADER_SIZE - sizeof *msg)
|
||||
bsize = MAX_IMSGSIZE - IMSG_HEADER_SIZE - sizeof *msg;
|
||||
log_debug("read %zu from file %d", bsize, cf->stream);
|
||||
|
||||
msglen = (sizeof *msg) + bsize;
|
||||
msg = xrealloc(msg, msglen);
|
||||
msg->stream = cf->stream;
|
||||
memcpy(msg + 1, bdata, bsize);
|
||||
proc_send(cf->peer, MSG_READ, -1, msg, msglen);
|
||||
|
||||
evbuffer_drain(cf->event->input, bsize);
|
||||
}
|
||||
free(msg);
|
||||
}
|
||||
|
||||
/* Handle a file read open message (client). */
|
||||
void
|
||||
file_read_open(struct client_files *files, struct tmuxpeer *peer,
|
||||
struct imsg *imsg, int allow_streams, int close_received, client_file_cb cb,
|
||||
void *cbdata)
|
||||
{
|
||||
struct msg_read_open *msg = imsg->data;
|
||||
size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
const char *path;
|
||||
struct msg_read_done reply;
|
||||
struct client_file find, *cf;
|
||||
const int flags = O_NONBLOCK|O_RDONLY;
|
||||
int error;
|
||||
|
||||
if (msglen < sizeof *msg)
|
||||
fatalx("bad MSG_READ_OPEN size");
|
||||
if (msglen == sizeof *msg)
|
||||
path = "-";
|
||||
else
|
||||
path = (const char *)(msg + 1);
|
||||
log_debug("open read file %d %s", msg->stream, path);
|
||||
|
||||
find.stream = msg->stream;
|
||||
if ((cf = RB_FIND(client_files, files, &find)) != NULL) {
|
||||
error = EBADF;
|
||||
goto reply;
|
||||
}
|
||||
cf = file_create_with_peer(peer, files, msg->stream, cb, cbdata);
|
||||
if (cf->closed) {
|
||||
error = EBADF;
|
||||
goto reply;
|
||||
}
|
||||
|
||||
cf->fd = -1;
|
||||
if (msg->fd == -1)
|
||||
cf->fd = open(path, flags);
|
||||
else if (allow_streams) {
|
||||
if (msg->fd != STDIN_FILENO)
|
||||
errno = EBADF;
|
||||
else {
|
||||
cf->fd = dup(msg->fd);
|
||||
if (close_received)
|
||||
close(msg->fd); /* can only be used once */
|
||||
}
|
||||
} else
|
||||
errno = EBADF;
|
||||
if (cf->fd == -1) {
|
||||
error = errno;
|
||||
goto reply;
|
||||
}
|
||||
|
||||
cf->event = bufferevent_new(cf->fd, file_read_callback, NULL,
|
||||
file_read_error_callback, cf);
|
||||
bufferevent_enable(cf->event, EV_READ);
|
||||
return;
|
||||
|
||||
reply:
|
||||
reply.stream = msg->stream;
|
||||
reply.error = error;
|
||||
proc_send(peer, MSG_READ_DONE, -1, &reply, sizeof reply);
|
||||
}
|
||||
|
||||
/* Handle a write ready message (server). */
|
||||
void
|
||||
file_write_ready(struct client_files *files, struct imsg *imsg)
|
||||
{
|
||||
struct msg_write_ready *msg = imsg->data;
|
||||
size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
struct client_file find, *cf;
|
||||
|
||||
if (msglen != sizeof *msg)
|
||||
fatalx("bad MSG_WRITE_READY size");
|
||||
find.stream = msg->stream;
|
||||
if ((cf = RB_FIND(client_files, files, &find)) == NULL)
|
||||
return;
|
||||
if (msg->error != 0) {
|
||||
cf->error = msg->error;
|
||||
file_fire_done(cf);
|
||||
} else
|
||||
file_push(cf);
|
||||
}
|
||||
|
||||
/* Handle read data message (server). */
|
||||
void
|
||||
file_read_data(struct client_files *files, struct imsg *imsg)
|
||||
{
|
||||
struct msg_read_data *msg = imsg->data;
|
||||
size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
struct client_file find, *cf;
|
||||
void *bdata = msg + 1;
|
||||
size_t bsize = msglen - sizeof *msg;
|
||||
|
||||
if (msglen < sizeof *msg)
|
||||
fatalx("bad MSG_READ_DATA size");
|
||||
find.stream = msg->stream;
|
||||
if ((cf = RB_FIND(client_files, files, &find)) == NULL)
|
||||
return;
|
||||
|
||||
log_debug("file %d read %zu bytes", cf->stream, bsize);
|
||||
if (cf->error == 0) {
|
||||
if (evbuffer_add(cf->buffer, bdata, bsize) != 0) {
|
||||
cf->error = ENOMEM;
|
||||
file_fire_done(cf);
|
||||
} else
|
||||
file_fire_read(cf);
|
||||
}
|
||||
}
|
||||
|
||||
/* Handle a read done message (server). */
|
||||
void
|
||||
file_read_done(struct client_files *files, struct imsg *imsg)
|
||||
{
|
||||
struct msg_read_done *msg = imsg->data;
|
||||
size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
struct client_file find, *cf;
|
||||
|
||||
if (msglen != sizeof *msg)
|
||||
fatalx("bad MSG_READ_DONE size");
|
||||
find.stream = msg->stream;
|
||||
if ((cf = RB_FIND(client_files, files, &find)) == NULL)
|
||||
return;
|
||||
|
||||
log_debug("file %d read done", cf->stream);
|
||||
cf->error = msg->error;
|
||||
file_fire_done(cf);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user