From c6e7b2a333b5ecfc68a477ae85c188dcf00f314f Mon Sep 17 00:00:00 2001
From: "Kevin P. Fleming" <kpfleming@digium.com>
Date: Fri, 11 Nov 2005 03:48:28 +0000
Subject: [PATCH] issue #5590
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7068 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
ChangeLog | 2 +
apps/app_chanspy.c | 1 +
apps/app_mixmonitor.c | 1 +
channel.c | 1 +
include/asterisk/channel.h | 104 ---------------------------
include/asterisk/chanspy.h | 139 +++++++++++++++++++++++++++++++++++++
6 files changed, 144 insertions(+), 104 deletions(-)
create mode 100755 include/asterisk/chanspy.h
diff --git a/ChangeLog b/ChangeLog
index 66a2dfedc7..677f46933c 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
2005-11-10 Kevin P. Fleming <kpfleming@digium.com>
+ * include/asterisk/chanspy.h: move spy-related stuff into separate header so chan_h323 can build (issue #5590)
+
* include/asterisk/linkedlists.h (AST_LIST_HEAD_SET_NOLOCK): properly initialize tail pointer when list head is directly set (issue #5669)
* app.c (ast_app_parse_options): ok, so we aren't all perfect... let's make the while loop actually work properly here (issue #5684)
diff --git a/apps/app_chanspy.c b/apps/app_chanspy.c
index 3ec7b6dfb2..7d9061579d 100755
--- a/apps/app_chanspy.c
+++ b/apps/app_chanspy.c
@@ -35,6 +35,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
+#include "asterisk/chanspy.h"
#include "asterisk/features.h"
#include "asterisk/options.h"
#include "asterisk/app.h"
diff --git a/apps/app_mixmonitor.c b/apps/app_mixmonitor.c
index 6667377171..ef9ec254de 100755
--- a/apps/app_mixmonitor.c
+++ b/apps/app_mixmonitor.c
@@ -38,6 +38,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
+#include "asterisk/chanspy.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/lock.h"
diff --git a/channel.c b/channel.c
index 91c9fa355c..66560fef06 100755
--- a/channel.c
+++ b/channel.c
@@ -52,6 +52,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/sched.h"
#include "asterisk/options.h"
#include "asterisk/channel.h"
+#include "asterisk/chanspy.h"
#include "asterisk/musiconhold.h"
#include "asterisk/logger.h"
#include "asterisk/say.h"
diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h
index 61a8a29d75..6a4ff373f7 100755
--- a/include/asterisk/channel.h
+++ b/include/asterisk/channel.h
@@ -244,48 +244,6 @@ struct ast_channel_tech {
struct ast_channel *(* const bridged_channel)(struct ast_channel *chan, struct ast_channel *bridge);
};
-
-enum chanspy_states {
- CHANSPY_NEW = 0,
- CHANSPY_RUNNING = 1,
- CHANSPY_DONE = 2,
-};
-
-enum chanspy_flags {
- CHANSPY_MIXAUDIO = (1 << 0),
- CHANSPY_READ_VOLADJUST = (1 << 1),
- CHANSPY_WRITE_VOLADJUST = (1 << 2),
- CHANSPY_FORMAT_AUDIO = (1 << 3),
- CHANSPY_TRIGGER_MODE = (3 << 4),
- CHANSPY_TRIGGER_READ = (1 << 4),
- CHANSPY_TRIGGER_WRITE = (2 << 4),
- CHANSPY_TRIGGER_NONE = (3 << 4),
- CHANSPY_TRIGGER_FLUSH = (1 << 6),
-};
-
-struct ast_channel_spy_queue {
- struct ast_frame *head;
- unsigned int samples;
- unsigned int format;
-};
-
-struct ast_channel_spy {
- ast_mutex_t lock;
- ast_cond_t trigger;
- struct ast_channel_spy_queue read_queue;
- struct ast_channel_spy_queue write_queue;
- unsigned int flags;
- enum chanspy_states status;
- const char *type;
- /* The volume adjustment values are very straightforward:
- positive values cause the samples to be multiplied by that amount
- negative values cause the samples to be divided by the absolute value of that amount
- */
- int read_vol_adjustment;
- int write_vol_adjustment;
- AST_LIST_ENTRY(ast_channel_spy) list;
-};
-
struct ast_channel_spy_list;
/*! Main Channel structure associated with a channel.
@@ -1110,68 +1068,6 @@ void ast_channel_inherit_variables(const struct ast_channel *parent, struct ast_
*/
void ast_set_variables(struct ast_channel *chan, struct ast_variable *vars);
-/*!
- \brief Adds a spy to a channel, to begin receiving copies of the channel's audio frames.
- \param chan The channel to add the spy to.
- \param spy A pointer to ast_channel_spy structure describing how the spy is to be used.
- \return 0 for success, non-zero for failure
-
- Note: This function performs no locking; you must hold the channel's lock before
- calling this function.
- */
-int ast_channel_spy_add(struct ast_channel *chan, struct ast_channel_spy *spy);
-
-/*!
- \brief Remove a spy from a channel.
- \param chan The channel to remove the spy from
- \param spy The spy to be removed
- \return nothing
-
- Note: This function performs no locking; you must hold the channel's lock before
- calling this function.
- */
-void ast_channel_spy_remove(struct ast_channel *chan, struct ast_channel_spy *spy);
-
-/*!
- \brief Find all spies of a particular type on a channel and stop them.
- \param chan The channel to operate on
- \param type A character string identifying the type of spies to be stopped
- \return nothing
-
- Note: This function performs no locking; you must hold the channel's lock before
- calling this function.
- */
-void ast_channel_spy_stop_by_type(struct ast_channel *chan, const char *type);
-
-/*!
- \brief Read one (or more) frames of audio from a channel being spied upon.
- \param spy The spy to operate on
- \param samples The number of audio samples to read
- \return NULL for failure, one ast_frame pointer, or a chain of ast_frame pointers
-
- This function can return multiple frames if the spy structure needs to be 'flushed'
- due to mismatched queue lengths, or if the spy structure is configured to return
- unmixed audio (in which case each call to this function will return a frame of audio
- from each side of channel).
-
- Note: This function performs no locking; you must hold the spy's lock before calling
- this function. You must <b>not</b> hold the channel's lock at the same time.
- */
-struct ast_frame *ast_channel_spy_read_frame(struct ast_channel_spy *spy, unsigned int samples);
-
-/*!
- \brief Efficiently wait until audio is available for a spy, or an exception occurs.
- \param spy The spy to wait on
- \return nothing
-
- Note: The locking rules for this function are non-obvious... first, you must <b>not</b>
- hold the channel's lock when calling this function. Second, you must hold the spy's lock
- before making the function call; while the function runs the lock will be released, and
- when the trigger event occurs, the lock will be re-obtained. This means that when control
- returns to your code, you will again hold the spy's lock.
- */
-void ast_channel_spy_trigger_wait(struct ast_channel_spy *spy);
-
/*!
\brief An opaque 'object' structure use by silence generators on channels.
*/
diff --git a/include/asterisk/chanspy.h b/include/asterisk/chanspy.h
new file mode 100755
index 0000000000..4973763b23
--- /dev/null
+++ b/include/asterisk/chanspy.h
@@ -0,0 +1,139 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 1999 - 2005, Digium, Inc.
+ *
+ * Mark Spencer <markster@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ * \brief Asterisk PBX channel spy definitions
+ */
+
+#ifndef _ASTERISK_CHANSPY_H
+#define _ASTERISK_CHANSPY_H
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+#include "asterisk/linkedlists.h"
+
+enum chanspy_states {
+ CHANSPY_NEW = 0,
+ CHANSPY_RUNNING = 1,
+ CHANSPY_DONE = 2,
+};
+
+enum chanspy_flags {
+ CHANSPY_MIXAUDIO = (1 << 0),
+ CHANSPY_READ_VOLADJUST = (1 << 1),
+ CHANSPY_WRITE_VOLADJUST = (1 << 2),
+ CHANSPY_FORMAT_AUDIO = (1 << 3),
+ CHANSPY_TRIGGER_MODE = (3 << 4),
+ CHANSPY_TRIGGER_READ = (1 << 4),
+ CHANSPY_TRIGGER_WRITE = (2 << 4),
+ CHANSPY_TRIGGER_NONE = (3 << 4),
+ CHANSPY_TRIGGER_FLUSH = (1 << 6),
+};
+
+struct ast_channel_spy_queue {
+ struct ast_frame *head;
+ unsigned int samples;
+ unsigned int format;
+};
+
+struct ast_channel_spy {
+ AST_LIST_ENTRY(ast_channel_spy) list;
+ ast_mutex_t lock;
+ ast_cond_t trigger;
+ struct ast_channel_spy_queue read_queue;
+ struct ast_channel_spy_queue write_queue;
+ unsigned int flags;
+ enum chanspy_states status;
+ const char *type;
+ /* The volume adjustment values are very straightforward:
+ positive values cause the samples to be multiplied by that amount
+ negative values cause the samples to be divided by the absolute value of that amount
+ */
+ int read_vol_adjustment;
+ int write_vol_adjustment;
+};
+
+/*!
+ \brief Adds a spy to a channel, to begin receiving copies of the channel's audio frames.
+ \param chan The channel to add the spy to.
+ \param spy A pointer to ast_channel_spy structure describing how the spy is to be used.
+ \return 0 for success, non-zero for failure
+
+ Note: This function performs no locking; you must hold the channel's lock before
+ calling this function.
+ */
+int ast_channel_spy_add(struct ast_channel *chan, struct ast_channel_spy *spy);
+
+/*!
+ \brief Remove a spy from a channel.
+ \param chan The channel to remove the spy from
+ \param spy The spy to be removed
+ \return nothing
+
+ Note: This function performs no locking; you must hold the channel's lock before
+ calling this function.
+ */
+void ast_channel_spy_remove(struct ast_channel *chan, struct ast_channel_spy *spy);
+
+/*!
+ \brief Find all spies of a particular type on a channel and stop them.
+ \param chan The channel to operate on
+ \param type A character string identifying the type of spies to be stopped
+ \return nothing
+
+ Note: This function performs no locking; you must hold the channel's lock before
+ calling this function.
+ */
+void ast_channel_spy_stop_by_type(struct ast_channel *chan, const char *type);
+
+/*!
+ \brief Read one (or more) frames of audio from a channel being spied upon.
+ \param spy The spy to operate on
+ \param samples The number of audio samples to read
+ \return NULL for failure, one ast_frame pointer, or a chain of ast_frame pointers
+
+ This function can return multiple frames if the spy structure needs to be 'flushed'
+ due to mismatched queue lengths, or if the spy structure is configured to return
+ unmixed audio (in which case each call to this function will return a frame of audio
+ from each side of channel).
+
+ Note: This function performs no locking; you must hold the spy's lock before calling
+ this function. You must <b>not</b> hold the channel's lock at the same time.
+ */
+struct ast_frame *ast_channel_spy_read_frame(struct ast_channel_spy *spy, unsigned int samples);
+
+/*!
+ \brief Efficiently wait until audio is available for a spy, or an exception occurs.
+ \param spy The spy to wait on
+ \return nothing
+
+ Note: The locking rules for this function are non-obvious... first, you must <b>not</b>
+ hold the channel's lock when calling this function. Second, you must hold the spy's lock
+ before making the function call; while the function runs the lock will be released, and
+ when the trigger event occurs, the lock will be re-obtained. This means that when control
+ returns to your code, you will again hold the spy's lock.
+ */
+void ast_channel_spy_trigger_wait(struct ast_channel_spy *spy);
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
+
+#endif /* _ASTERISK_CHANSPY_H */
--
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