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try to detect when stupid clients forks and refuse all service from then on

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This commit is contained in:
Lennart Poettering 2009-03-05 04:33:40 +01:00
parent 9d29b96ac0
commit 3122008704
9 changed files with 227 additions and 3 deletions
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9
src/pulse/ext-stream-restore.c
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@ -31,6 +31,7 @@
#include "internal.h"
#include "operation.h"
#include "fork-detect.h"
#include "ext-stream-restore.h"
@ -87,6 +88,7 @@ pa_operation *pa_ext_stream_restore_test(
pa_assert(c);
pa_assert(PA_REFCNT_VALUE(c) >= 1);
PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);
@ -167,6 +169,7 @@ pa_operation *pa_ext_stream_restore_read(
pa_assert(c);
pa_assert(PA_REFCNT_VALUE(c) >= 1);
PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);
@ -200,6 +203,7 @@ pa_operation *pa_ext_stream_restore_write(
pa_assert(mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE || mode == PA_UPDATE_SET);
pa_assert(data);
PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);
@ -262,6 +266,7 @@ pa_operation *pa_ext_stream_restore_delete(
pa_assert(PA_REFCNT_VALUE(c) >= 1);
pa_assert(s);
PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);
@ -310,6 +315,7 @@ pa_operation *pa_ext_stream_restore_subscribe(
pa_assert(c);
pa_assert(PA_REFCNT_VALUE(c) >= 1);
PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);
@ -334,6 +340,9 @@ void pa_ext_stream_restore_set_subscribe_cb(
pa_assert(c);
pa_assert(PA_REFCNT_VALUE(c) >= 1);
if (pa_detect_fork())
return;
c->ext_stream_restore.callback = cb;
c->ext_stream_restore.userdata = userdata;
}