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* some iochannel fixes

Browse source 
* introduce reference counting in ioline
* fix memory leak in socket-client.c
* fix double-free error in protocol-esound.c


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@293 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-11-18 20:50:44 +00:00
parent eef235d879
commit 8641af3c6d
11 changed files with 240 additions and 145 deletions
Download patch file Download diff file Expand all files Collapse all files

3
polyp/Makefile.am
View file

@ -215,8 +215,7 @@ polypaudio_SOURCES = idxset.c idxset.h \
polypaudio_CFLAGS = $(AM_CFLAGS) $(LIBSAMPLERATE_CFLAGS) $(LIBSNDFILE_CFLAGS)
polypaudio_INCLUDES = $(INCLTDL)
polypaudio_LDADD = $(AM_LDADD) $(LIBLTDL) $(LIBSAMPLERATE_LIBS) $(LIBSNDFILE_LIBS) $(CAP_LIBS)
polypaudio_LDFLAGS= -export-dynamic -dlopen force
# -static $(foreach f,$(modlib_LTLIBRARIES),-dlpreopen $(f))
polypaudio_LDFLAGS= -export-dynamic -dlopen force #-static $(foreach f,$(modlib_LTLIBRARIES),-dlpreopen $(f))
libprotocol_simple_la_SOURCES = protocol-simple.c protocol-simple.h
libprotocol_simple_la_LDFLAGS = -avoid-version

3
polyp/cli.c
View file

@ -92,7 +92,8 @@ struct pa_cli* pa_cli_new(struct pa_core *core, struct pa_iochannel *io, struct
void pa_cli_free(struct pa_cli *c) {
assert(c);
pa_ioline_free(c->line);
pa_ioline_close(c->line);
pa_ioline_unref(c->line);
pa_client_free(c->client);
pa_xfree(c);
}

5
polyp/iochannel.c
View file

@ -235,3 +235,8 @@ int pa_iochannel_socket_set_sndbuf(struct pa_iochannel *io, size_t l) {
return pa_socket_set_sndbuf(io->ofd, l);
}
struct pa_mainloop_api* pa_iochannel_get_mainloop_api(struct pa_iochannel *io) {
assert(io);
return io->mainloop;
}

2
polyp/iochannel.h
View file

@ -47,4 +47,6 @@ void pa_iochannel_socket_peer_to_string(struct pa_iochannel*io, char*s, size_t l
int pa_iochannel_socket_set_rcvbuf(struct pa_iochannel*io, size_t l);
int pa_iochannel_socket_set_sndbuf(struct pa_iochannel*io, size_t l);
struct pa_mainloop_api* pa_iochannel_get_mainloop_api(struct pa_iochannel *io);
#endif

241
polyp/ioline.c
View file

@ -31,12 +31,16 @@
#include "ioline.h"
#include "xmalloc.h"
#include "log.h"
#define BUFFER_LIMIT (64*1024)
#define READ_SIZE (1024)
struct pa_ioline {
struct pa_iochannel *io;
struct pa_defer_event *defer_event;
struct pa_mainloop_api *mainloop;
int ref;
int dead;
char *wbuf;
@ -50,7 +54,7 @@ struct pa_ioline {
};
static void io_callback(struct pa_iochannel*io, void *userdata);
static int do_write(struct pa_ioline *l);
static void defer_callback(struct pa_mainloop_api*m, struct pa_defer_event*e, void *userdata);
struct pa_ioline* pa_ioline_new(struct pa_iochannel *io) {
struct pa_ioline *l;
@ -68,68 +72,112 @@ struct pa_ioline* pa_ioline_new(struct pa_iochannel *io) {
l->callback = NULL;
l->userdata = NULL;
l->ref = 1;
l->mainloop = pa_iochannel_get_mainloop_api(io);
l->defer_event = l->mainloop->defer_new(l->mainloop, defer_callback, l);
l->mainloop->defer_enable(l->defer_event, 0);
pa_iochannel_set_callback(io, io_callback, l);
return l;
}
void pa_ioline_free(struct pa_ioline *l) {
static void ioline_free(struct pa_ioline *l) {
assert(l);
pa_iochannel_free(l->io);
if (l->io)
pa_iochannel_free(l->io);
pa_xfree(l->wbuf);
pa_xfree(l->rbuf);
pa_xfree(l);
}
void pa_ioline_unref(struct pa_ioline *l) {
assert(l && l->ref >= 1);
if ((--l->ref) <= 0)
ioline_free(l);
}
struct pa_ioline* pa_ioline_ref(struct pa_ioline *l) {
assert(l && l->ref >= 1);
l->ref++;
return l;
}
void pa_ioline_close(struct pa_ioline *l) {
assert(l && l->ref >= 1);
l->dead = 1;
if (l->io) {
pa_iochannel_free(l->io);
l->io = NULL;
}
}
void pa_ioline_puts(struct pa_ioline *l, const char *c) {
size_t len;
assert(l && c);
assert(l && c && l->ref >= 1 && !l->dead);
pa_ioline_ref(l);
len = strlen(c);
if (len > BUFFER_LIMIT - l->wbuf_valid_length)
len = BUFFER_LIMIT - l->wbuf_valid_length;
if (!len)
return;
if (len) {
assert(l->wbuf_length >= l->wbuf_valid_length);
assert(l->wbuf_length >= l->wbuf_valid_length);
/* In case the allocated buffer is too small, enlarge it. */
if (l->wbuf_valid_length + len > l->wbuf_length) {
size_t n = l->wbuf_valid_length+len;
char *new = pa_xmalloc(n);
if (l->wbuf) {
memcpy(new, l->wbuf+l->wbuf_index, l->wbuf_valid_length);
pa_xfree(l->wbuf);
}
l->wbuf = new;
l->wbuf_length = n;
l->wbuf_index = 0;
} else if (l->wbuf_index + l->wbuf_valid_length + len > l->wbuf_length) {
/* In case the allocated buffer is too small, enlarge it. */
if (l->wbuf_valid_length + len > l->wbuf_length) {
size_t n = l->wbuf_valid_length+len;
char *new = pa_xmalloc(n);
if (l->wbuf) {
memcpy(new, l->wbuf+l->wbuf_index, l->wbuf_valid_length);
pa_xfree(l->wbuf);
/* In case the allocated buffer fits, but the current index is too far from the start, move it to the front. */
memmove(l->wbuf, l->wbuf+l->wbuf_index, l->wbuf_valid_length);
l->wbuf_index = 0;
}
l->wbuf = new;
l->wbuf_length = n;
l->wbuf_index = 0;
} else if (l->wbuf_index + l->wbuf_valid_length + len > l->wbuf_length) {
/* In case the allocated buffer fits, but the current index is too far from the start, move it to the front. */
memmove(l->wbuf, l->wbuf+l->wbuf_index, l->wbuf_valid_length);
l->wbuf_index = 0;
assert(l->wbuf_index + l->wbuf_valid_length + len <= l->wbuf_length);
/* Append the new string */
memcpy(l->wbuf + l->wbuf_index + l->wbuf_valid_length, c, len);
l->wbuf_valid_length += len;
l->mainloop->defer_enable(l->defer_event, 1);
}
assert(l->wbuf_index + l->wbuf_valid_length + len <= l->wbuf_length);
/* Append the new string */
memcpy(l->wbuf + l->wbuf_index + l->wbuf_valid_length, c, len);
l->wbuf_valid_length += len;
do_write(l);
pa_ioline_unref(l);
}
void pa_ioline_set_callback(struct pa_ioline*l, void (*callback)(struct pa_ioline*io, const char *s, void *userdata), void *userdata) {
assert(l);
assert(l && l->ref >= 1);
l->callback = callback;
l->userdata = userdata;
}
static void failure(struct pa_ioline *l) {
assert(l && l->ref >= 1 && !l->dead);
pa_ioline_close(l);
if (l->callback)
l->callback(l, NULL, l->userdata);
}
static void scan_for_lines(struct pa_ioline *l, size_t skip) {
assert(l && skip < l->rbuf_valid_length);
assert(l && l->ref >= 1 && skip < l->rbuf_valid_length);
while (!l->dead && l->rbuf_valid_length > skip) {
char *e, *p;
@ -162,86 +210,109 @@ static void scan_for_lines(struct pa_ioline *l, size_t skip) {
}
static int do_read(struct pa_ioline *l) {
ssize_t r;
size_t len;
assert(l);
assert(l && l->ref >= 1);
if (!pa_iochannel_is_readable(l->io))
return 0;
while (!l->dead && pa_iochannel_is_readable(l->io)) {
ssize_t r;
size_t len;
len = l->rbuf_length - l->rbuf_index - l->rbuf_valid_length;
len = l->rbuf_length - l->rbuf_index - l->rbuf_valid_length;
/* Check if we have to enlarge the read buffer */
if (len < READ_SIZE) {
size_t n = l->rbuf_valid_length+READ_SIZE;
/* Check if we have to enlarge the read buffer */
if (len < READ_SIZE) {
size_t n = l->rbuf_valid_length+READ_SIZE;
if (n >= BUFFER_LIMIT)
n = BUFFER_LIMIT;
if (n >= BUFFER_LIMIT)
n = BUFFER_LIMIT;
if (l->rbuf_length >= n) {
/* The current buffer is large enough, let's just move the data to the front */
if (l->rbuf_valid_length)
memmove(l->rbuf, l->rbuf+l->rbuf_index, l->rbuf_valid_length);
} else {
/* Enlarge the buffer */
char *new = pa_xmalloc(n);
if (l->rbuf_valid_length)
memcpy(new, l->rbuf+l->rbuf_index, l->rbuf_valid_length);
pa_xfree(l->rbuf);
l->rbuf = new;
l->rbuf_length = n;
if (l->rbuf_length >= n) {
/* The current buffer is large enough, let's just move the data to the front */
if (l->rbuf_valid_length)
memmove(l->rbuf, l->rbuf+l->rbuf_index, l->rbuf_valid_length);
} else {
/* Enlarge the buffer */
char *new = pa_xmalloc(n);
if (l->rbuf_valid_length)
memcpy(new, l->rbuf+l->rbuf_index, l->rbuf_valid_length);
pa_xfree(l->rbuf);
l->rbuf = new;
l->rbuf_length = n;
}
l->rbuf_index = 0;
}
l->rbuf_index = 0;
len = l->rbuf_length - l->rbuf_index - l->rbuf_valid_length;
assert(len >= READ_SIZE);
/* Read some data */
if ((r = pa_iochannel_read(l->io, l->rbuf+l->rbuf_index+l->rbuf_valid_length, len)) <= 0) {
pa_log(__FILE__": read() failed: %s\n", r < 0 ? strerror(errno) : "EOF");
failure(l);
return -1;
}
l->rbuf_valid_length += r;
/* Look if a line has been terminated in the newly read data */
scan_for_lines(l, l->rbuf_valid_length - r);
}
len = l->rbuf_length - l->rbuf_index - l->rbuf_valid_length;
assert(len >= READ_SIZE);
/* Read some data */
if ((r = pa_iochannel_read(l->io, l->rbuf+l->rbuf_index+l->rbuf_valid_length, len)) <= 0)
return -1;
l->rbuf_valid_length += r;
/* Look if a line has been terminated in the newly read data */
scan_for_lines(l, l->rbuf_valid_length - r);
return 0;
}
/* Try to flush the buffer */
static int do_write(struct pa_ioline *l) {
ssize_t r;
assert(l);
assert(l && l->ref >= 1);
if (!l->wbuf_valid_length || !pa_iochannel_is_writable(l->io))
return 0;
while (!l->dead && pa_iochannel_is_writable(l->io) && l->wbuf_valid_length) {
if ((r = pa_iochannel_write(l->io, l->wbuf+l->wbuf_index, l->wbuf_valid_length)) < 0)
return -1;
if ((r = pa_iochannel_write(l->io, l->wbuf+l->wbuf_index, l->wbuf_valid_length)) < 0) {
pa_log(__FILE__": write() failed: %s\n", r < 0 ? strerror(errno) : "EOF");
failure(l);
return -1;
}
l->wbuf_index += r;
l->wbuf_valid_length -= r;
l->wbuf_index += r;
l->wbuf_valid_length -= r;
/* A shortcut for the next time */
if (l->wbuf_valid_length == 0)
l->wbuf_index = 0;
/* A shortcut for the next time */
if (l->wbuf_valid_length == 0)
l->wbuf_index = 0;
}
return 0;
}
/* Try to flush read/write data */
static void do_work(struct pa_ioline *l) {
assert(l && l->ref >= 1);
pa_ioline_ref(l);
l->mainloop->defer_enable(l->defer_event, 0);
if (!l->dead)
do_write(l);
if (!l->dead)
do_read(l);
pa_ioline_unref(l);
}
static void io_callback(struct pa_iochannel*io, void *userdata) {
struct pa_ioline *l = userdata;
assert(io && l);
assert(io && l && l->ref >= 1);
if ((!l->dead && do_write(l) < 0) ||
(!l->dead && do_read(l) < 0)) {
l->dead = 1;
if (l->callback)
l->callback(l, NULL, l->userdata);
}
do_work(l);
}
static void defer_callback(struct pa_mainloop_api*m, struct pa_defer_event*e, void *userdata) {
struct pa_ioline *l = userdata;
assert(l && l->ref >= 1 && l->mainloop == m && l->defer_event == e);
do_work(l);
}

4
polyp/ioline.h
View file

@ -27,7 +27,9 @@
struct pa_ioline;
struct pa_ioline* pa_ioline_new(struct pa_iochannel *io);
void pa_ioline_free(struct pa_ioline *l);
void pa_ioline_unref(struct pa_ioline *l);
struct pa_ioline* pa_ioline_ref(struct pa_ioline *l);
void pa_ioline_close(struct pa_ioline *l);
void pa_ioline_puts(struct pa_ioline *s, const char *c);
void pa_ioline_set_callback(struct pa_ioline*io, void (*callback)(struct pa_ioline*io, const char *s, void *userdata), void *userdata);

3
polyp/mainloop.c
View file

@ -116,8 +116,7 @@ static void mainloop_io_enable(struct pa_io_event *e, enum pa_io_event_flags eve
e->pollfd->events =
(events & PA_IO_EVENT_INPUT ? POLLIN : 0) |
(events & PA_IO_EVENT_OUTPUT ? POLLOUT : 0) |
POLLHUP |
POLLERR;
POLLERR | POLLHUP;
}
static void mainloop_io_free(struct pa_io_event *e) {

67
polyp/protocol-esound.c
View file

@ -267,8 +267,10 @@ static int esd_proto_connect(struct connection *c, esd_proto_t request, const vo
}
c->authorized = 1;
if (c->auth_timeout_event)
if (c->auth_timeout_event) {
c->protocol->core->mainloop->time_free(c->auth_timeout_event);
c->auth_timeout_event = NULL;
}
}
ekey = *(uint32_t*)((uint8_t*) data+ESD_KEY_LEN);
@ -301,11 +303,13 @@ static int esd_proto_stream_play(struct connection *c, esd_proto_t request, cons
ss.rate = rate;
format_esd2native(format, &ss);
if (!pa_sample_spec_valid(&ss))
if (!pa_sample_spec_valid(&ss)) {
pa_log(__FILE__": invalid sample specification\n");
return -1;
}
if (!(sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) {
pa_log(__FILE__": No output sink\n");
pa_log(__FILE__": no such sink\n");
return -1;
}
@ -314,18 +318,18 @@ static int esd_proto_stream_play(struct connection *c, esd_proto_t request, cons
pa_client_set_name(c->client, name);
assert(!c->input_memblockq);
assert(!c->sink_input && !c->input_memblockq);
if (!(c->sink_input = pa_sink_input_new(sink, name, &ss, 0, -1))) {
pa_log(__FILE__": failed to create sink input.\n");
return -1;
}
l = (size_t) (pa_bytes_per_second(&ss)*PLAYBACK_BUFFER_SECONDS);
c->input_memblockq = pa_memblockq_new(l, 0, pa_frame_size(&ss), l/2, l/PLAYBACK_BUFFER_FRAGMENTS, c->protocol->core->memblock_stat);
assert(c->input_memblockq);
pa_iochannel_socket_set_rcvbuf(c->io, l/PLAYBACK_BUFFER_FRAGMENTS*2);
c->playback.fragment_size = l/10;
assert(!c->sink_input);
c->sink_input = pa_sink_input_new(sink, name, &ss, 0, -1);
assert(c->sink_input);
c->sink_input->owner = c->protocol->module;
c->sink_input->client = c->client;
c->sink_input->peek = sink_input_peek_cb;
@ -355,22 +359,30 @@ static int esd_proto_stream_record(struct connection *c, esd_proto_t request, co
ss.rate = rate;
format_esd2native(format, &ss);
if (!pa_sample_spec_valid(&ss))
if (!pa_sample_spec_valid(&ss)) {
pa_log(__FILE__": invalid sample specification.\n");
return -1;
}
if (request == ESD_PROTO_STREAM_MON) {
struct pa_sink* sink;
if (!(sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1)))
if (!(sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) {
pa_log(__FILE__": no such sink.\n");
return -1;
}
if (!(source = sink->monitor_source))
if (!(source = sink->monitor_source)) {
pa_log(__FILE__": no such monitor source.\n");
return -1;
}
} else {
assert(request == ESD_PROTO_STREAM_REC);
if (!(source = pa_namereg_get(c->protocol->core, c->protocol->source_name, PA_NAMEREG_SOURCE, 1)))
if (!(source = pa_namereg_get(c->protocol->core, c->protocol->source_name, PA_NAMEREG_SOURCE, 1))) {
pa_log(__FILE__": no such source.\n");
return -1;
}
}
strncpy(name, (char*) data + sizeof(int)*2, sizeof(name));
@ -378,17 +390,17 @@ static int esd_proto_stream_record(struct connection *c, esd_proto_t request, co
pa_client_set_name(c->client, name);
assert(!c->output_memblockq);
assert(!c->output_memblockq && !c->source_output);
if (!(c->source_output = pa_source_output_new(source, name, &ss, -1))) {
pa_log(__FILE__": failed to create source output\n");
return -1;
}
l = (size_t) (pa_bytes_per_second(&ss)*RECORD_BUFFER_SECONDS);
c->output_memblockq = pa_memblockq_new(l, 0, pa_frame_size(&ss), 0, 0, c->protocol->core->memblock_stat);
assert(c->output_memblockq);
pa_iochannel_socket_set_sndbuf(c->io, l/RECORD_BUFFER_FRAGMENTS*2);
assert(!c->source_output);
c->source_output = pa_source_output_new(source, name, &ss, -1);
assert(c->source_output);
c->source_output->owner = c->protocol->module;
c->source_output->client = c->client;
c->source_output->push = source_output_push_cb;
@ -830,7 +842,7 @@ static int do_read(struct connection *c) {
return -1;
}
/* pa_log(__FILE__": read %u\n", r); */
/* pa_log(__FILE__": read %u\n", r); */
chunk.memblock = c->playback.current_memblock;
chunk.index = c->playback.memblock_index;
@ -894,19 +906,22 @@ static void do_work(struct connection *c) {
assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable);
c->protocol->core->mainloop->defer_enable(c->defer_event, 0);
/* pa_log("DOWORK\n"); */
/* pa_log("DOWORK %i\n", pa_iochannel_is_hungup(c->io)); */
if (c->dead || !c->io)
return;
if (pa_iochannel_is_readable(c->io))
if (!c->dead && pa_iochannel_is_readable(c->io))
if (do_read(c) < 0)
goto fail;
if (pa_iochannel_is_writable(c->io))
if (!c->dead && pa_iochannel_is_writable(c->io))
if (do_write(c) < 0)
goto fail;
/* In case the line was hungup, make sure to rerun this function
as soon as possible, until all data has been read. */
if (!c->dead && pa_iochannel_is_hungup(c->io))
c->protocol->core->mainloop->defer_enable(c->defer_event, 1);
return;
fail:

6
polyp/protocol-simple.c
View file

@ -180,9 +180,6 @@ static void do_work(struct connection *c) {
assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable);
c->protocol->core->mainloop->defer_enable(c->defer_event, 0);
if (pa_iochannel_is_hungup(c->io))
goto fail;
if (pa_iochannel_is_writable(c->io))
if (do_write(c) < 0)
goto fail;
@ -191,6 +188,9 @@ static void do_work(struct connection *c) {
if (do_read(c) < 0)
goto fail;
if (pa_iochannel_is_hungup(c->io))
c->protocol->core->mainloop->defer_enable(c->defer_event, 1);
return;
fail:

17
polyp/pstream.c
View file

@ -103,24 +103,21 @@ static void do_read(struct pa_pstream *p);
static void do_something(struct pa_pstream *p) {
assert(p);
if (p->dead)
return;
p->mainloop->defer_enable(p->defer_event, 0);
pa_pstream_ref(p);
if (!p->dead && pa_iochannel_is_hungup(p->io)) {
p->dead = 1;
if (p->die_callback)
p->die_callback(p, p->die_callback_userdata);
}
if (!p->dead && pa_iochannel_is_readable(p->io))
do_read(p);
if (!p->dead && pa_iochannel_is_writable(p->io))
do_write(p);
if (!p->dead && pa_iochannel_is_readable(p->io))
do_read(p);
/* In case the line was hungup, make sure to rerun this function
as soon as possible, until all data has been read. */
if (!p->dead && pa_iochannel_is_hungup(p->io))
p->mainloop->defer_enable(p->defer_event, 1);
pa_pstream_unref(p);
}

6
polyp/socket-client.c
View file

@ -330,6 +330,7 @@ struct pa_socket_client* pa_socket_client_new_string(struct pa_mainloop_api *m,
case KIND_TCP6: {
uint16_t port = default_port;
char *h;
int ret;
struct addrinfo hints, *res;
if (!(h = parse_address(p, &port)))
@ -338,7 +339,10 @@ struct pa_socket_client* pa_socket_client_new_string(struct pa_mainloop_api *m,
memset(&hints, 0, sizeof(hints));
hints.ai_family = kind == KIND_TCP4 ? AF_INET : (kind == KIND_TCP6 ? AF_INET6 : AF_UNSPEC);
if (getaddrinfo(h, NULL, &hints, &res) < 0 || !res || !res->ai_addr)
ret = getaddrinfo(h, NULL, &hints, &res);
pa_xfree(h);
if (ret < 0 || !res || !res->ai_addr)
return NULL;
if (res->ai_family == AF_INET) {