switch_core_pvt.h

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/*
 * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
 * Copyright (C) 2005-2021, Anthony Minessale II <anthm@freeswitch.org>
 *
 * Version: MPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
 *
 * The Initial Developer of the Original Code is
 * Anthony Minessale II <anthm@freeswitch.org>
 * Portions created by the Initial Developer are Copyright (C)
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Anthony Minessale II <anthm@freeswitch.org>
 * Andrey Volk <andywolk@gmail.com>
 *
 *
 * switch_core.h -- Core Library Private Data (not to be installed into the system)
 * If the last line didn't make sense, stop reading this file, go away!,
 * this file does not exist!!!!
 *
 */
#include "switch_profile.h"

#ifndef WIN32
#include <switch_private.h>
#endif

#ifdef HAVE_MLOCKALL
#include <sys/mman.h>
#endif

#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif

#ifndef WIN32
/* setuid, setgid */
#include <unistd.h>

/* getgrnam, getpwnam */
#include <pwd.h>
#include <grp.h>

#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#endif

/* #define DEBUG_ALLOC */
#define DO_EVENTS

#define SWITCH_EVENT_QUEUE_LEN 256
#define SWITCH_MESSAGE_QUEUE_LEN 256

#define SWITCH_BUFFER_BLOCK_FRAMES 25
#define SWITCH_BUFFER_START_FRAMES 50

typedef enum {
        SSF_NONE = 0,
        SSF_DESTROYED = (1 << 0),
        SSF_WARN_TRANSCODE = (1 << 1),
        SSF_HANGUP = (1 << 2),
        SSF_THREAD_STARTED = (1 << 3),
        SSF_THREAD_RUNNING = (1 << 4),
        SSF_READ_TRANSCODE = (1 << 5),
        SSF_WRITE_TRANSCODE = (1 << 6),
        SSF_READ_CODEC_RESET = (1 << 7),
        SSF_WRITE_CODEC_RESET = (1 << 8),
        SSF_DESTROYABLE = (1 << 9),
        SSF_MEDIA_BUG_TAP_ONLY = (1 << 10)
} switch_session_flag_t;

struct switch_core_session {
        switch_memory_pool_t *pool;
        switch_thread_t *thread;
        switch_thread_id_t thread_id;
        switch_endpoint_interface_t *endpoint_interface;
        switch_size_t id;
        switch_session_flag_t flags;
        switch_channel_t *channel;

        switch_io_event_hooks_t event_hooks;
        switch_codec_t *read_codec;
        switch_codec_t *real_read_codec;
        switch_codec_t *write_codec;
        switch_codec_t *real_write_codec;
        switch_codec_t *video_read_codec;
        switch_codec_t *video_write_codec;

        switch_codec_implementation_t read_impl;
        switch_codec_implementation_t real_read_impl;
        switch_codec_implementation_t write_impl;
        switch_codec_implementation_t video_read_impl;
        switch_codec_implementation_t video_write_impl;

        switch_audio_resampler_t *read_resampler;
        switch_audio_resampler_t *write_resampler;

        switch_mutex_t *mutex;
        switch_mutex_t *stack_count_mutex;
        switch_mutex_t *resample_mutex;
        switch_mutex_t *codec_init_mutex;
        switch_mutex_t *codec_read_mutex;
        switch_mutex_t *codec_write_mutex;
        switch_thread_cond_t *cond;
        switch_mutex_t *frame_read_mutex;

        switch_thread_rwlock_t *rwlock;
        switch_thread_rwlock_t *io_rwlock;

        void *streams[SWITCH_MAX_STREAMS];
        int stream_count;

        char uuid_str[SWITCH_UUID_FORMATTED_LENGTH + 1];
        void *private_info[SWITCH_CORE_SESSION_MAX_PRIVATES];
        switch_queue_t *event_queue;
        switch_queue_t *message_queue;
        switch_queue_t *signal_data_queue;
        switch_queue_t *private_event_queue;
        switch_queue_t *private_event_queue_pri;
        switch_thread_rwlock_t *bug_rwlock;
        switch_media_bug_t *bugs;
        switch_app_log_t *app_log;
        uint32_t stack_count;

        switch_buffer_t *raw_write_buffer;
        switch_frame_t raw_write_frame;
        switch_frame_t enc_write_frame;
        uint8_t raw_write_buf[SWITCH_RECOMMENDED_BUFFER_SIZE];
        uint8_t enc_write_buf[SWITCH_RECOMMENDED_BUFFER_SIZE];

        switch_buffer_t *raw_read_buffer;
        switch_frame_t raw_read_frame;
        switch_frame_t enc_read_frame;
        uint8_t raw_read_buf[SWITCH_RECOMMENDED_BUFFER_SIZE];
        uint8_t enc_read_buf[SWITCH_RECOMMENDED_BUFFER_SIZE];

        switch_codec_t bug_codec;
        uint32_t read_frame_count;
        uint32_t track_duration;
        uint32_t track_id;
        switch_log_level_t loglevel;
        uint32_t soft_lock;
        switch_ivr_dmachine_t *dmachine[2];
        switch_plc_state_t *plc;

        switch_media_handle_t *media_handle;
        uint32_t decoder_errors;
        switch_core_video_thread_callback_func_t video_read_callback;
        void *video_read_user_data;
        switch_core_video_thread_callback_func_t text_read_callback;
        void *text_read_user_data;
        switch_io_routines_t *io_override;
        switch_slin_data_t *sdata;

        switch_buffer_t *text_buffer;
        switch_buffer_t *text_line_buffer;
        switch_mutex_t *text_mutex;
        const char *external_id;
};

struct switch_media_bug {
        switch_buffer_t *raw_write_buffer;
        switch_buffer_t *raw_read_buffer;
        switch_frame_t *read_replace_frame_in;
        switch_frame_t *read_replace_frame_out;
        switch_frame_t *write_replace_frame_in;
        switch_frame_t *write_replace_frame_out;
        switch_frame_t *native_read_frame;
        switch_frame_t *native_write_frame;
        switch_media_bug_callback_t callback;
        switch_mutex_t *read_mutex;
        switch_mutex_t *write_mutex;
        switch_core_session_t *session;
        void *user_data;
        uint32_t flags;
        uint8_t ready;
        uint8_t data[SWITCH_RECOMMENDED_BUFFER_SIZE];
        int16_t tmp[SWITCH_RECOMMENDED_BUFFER_SIZE];
        time_t stop_time;
        switch_thread_id_t thread_id;
        char *function;
        char *target;
        switch_codec_implementation_t read_impl;
        switch_codec_implementation_t write_impl;
        uint32_t record_frame_size;
        uint32_t record_pre_buffer_count;
        uint32_t record_pre_buffer_max;
        switch_frame_t *ping_frame;
        switch_frame_t *video_ping_frame;
        switch_frame_t *read_demux_frame;
        switch_queue_t *read_video_queue;
        switch_queue_t *write_video_queue;
        switch_queue_t *spy_video_queue[2];
        switch_image_t *spy_img[2];
        switch_vid_spy_fmt_t spy_fmt;
        switch_thread_t *video_bug_thread;

        switch_buffer_t *text_buffer;
        char *text_framedata;
        uint32_t text_framesize;
        switch_mm_t mm;
        struct switch_media_bug *next;
};

typedef enum {
        DBTYPE_DEFAULT = 0,
        DBTYPE_MSSQL = 1,
} switch_dbtype_t;

struct switch_runtime {
        switch_time_t initiated;
        switch_time_t reference;
        int64_t offset;
        switch_event_t *global_vars;
        switch_hash_t *mime_types;
        switch_hash_t *mime_type_exts;
        switch_hash_t *ptimes;
        switch_memory_pool_t *memory_pool;
        const switch_state_handler_table_t *state_handlers[SWITCH_MAX_STATE_HANDLERS];
        int state_handler_index;
        FILE *console;
        uint8_t running;
        char uuid_str[SWITCH_UUID_FORMATTED_LENGTH + 1];
        uint32_t flags;
        switch_time_t timestamp;
        switch_mutex_t *uuid_mutex;
        switch_mutex_t *throttle_mutex;
        switch_mutex_t *session_hash_mutex;
        switch_mutex_t *global_mutex;
        switch_thread_rwlock_t *global_var_rwlock;
        uint32_t sps_total;
        int32_t sps;
        int32_t sps_last;
        int32_t sps_peak;
        int32_t sps_peak_fivemin;
        int32_t sessions_peak;
        int32_t sessions_peak_fivemin;
        switch_log_level_t hard_log_level;
        char *mailer_app;
        char *mailer_app_args;
        uint32_t max_dtmf_duration;
        uint32_t min_dtmf_duration;
        uint32_t default_dtmf_duration;
        switch_frame_t dummy_cng_frame;
        char dummy_data[5];
        switch_bool_t colorize_console;
        char *odbc_dsn;
        char *dbname;
        uint32_t debug_level;
        uint32_t runlevel;
        uint32_t tipping_point;
        uint32_t cpu_idle_smoothing_depth;
        uint32_t microseconds_per_tick;
        int32_t timer_affinity;
        switch_profile_timer_t *profile_timer;
        double profile_time;
        double min_idle_time;
        switch_dbtype_t odbc_dbtype;
        char hostname[256];
        char *switchname;
        int multiple_registrations;
        uint32_t max_db_handles;
        uint32_t db_handle_timeout;
        uint32_t event_heartbeat_interval;
        int cpu_count;
        uint32_t time_sync;
        char *core_db_pre_trans_execute;
        char *core_db_post_trans_execute;
        char *core_db_inner_pre_trans_execute;
        char *core_db_inner_post_trans_execute;
        int events_use_dispatch;
        uint32_t port_alloc_flags;
        char *event_channel_key_separator;
        uint32_t max_audio_channels;
        switch_call_cause_t shutdown_cause;
};

extern struct switch_runtime runtime;


struct switch_session_manager {
        switch_memory_pool_t *memory_pool;
        switch_hash_t *session_table;
        uint32_t session_count;
        uint32_t session_limit;
        switch_size_t session_id;
        switch_queue_t *thread_queue;
        switch_mutex_t *mutex;
        switch_thread_cond_t *cond;
        int running;
        int busy;
};

extern struct switch_session_manager session_manager;



switch_status_t switch_core_sqldb_init(const char **err);
void switch_core_sqldb_destroy(void);
switch_status_t switch_core_sqldb_start(switch_memory_pool_t *pool, switch_bool_t manage);
void switch_core_sqldb_stop(void);
void switch_core_session_init(switch_memory_pool_t *pool);
void switch_core_session_uninit(void);
void switch_core_state_machine_init(switch_memory_pool_t *pool);
switch_memory_pool_t *switch_core_memory_init(void);
void switch_core_memory_stop(void);