jack2/android/Shm.cpp at develop · jackaudio/jack2 · GitHub

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This program is free software; you can redistribute it and/or modify

it under the terms of the GNU Lesser General Public License as published by

the Free Software Foundation; either version 2.1 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#define LOG_TAG "JAMSHMSERVICE"

#include <stddef.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <binder/MemoryHeapBase.h>

#include <binder/IServiceManager.h>

#include <binder/IPCThreadState.h>

#include <utils/Log.h>

#include <sys/stat.h>

#include <sys/socket.h>

#include <sys/types.h>

#include <sys/un.h>

#include <sys/wait.h>

#include "BnAndroidShm.h"

#include "AndroidShm.h"

#include "JackConstants.h"

#include <fcntl.h>

#include <signal.h>

#include <limits.h>

#include <errno.h>

#include <dirent.h>

#include <sys/mman.h>

#include <linux/ashmem.h>

#include <cutils/ashmem.h>

#include "JackError.h"

// remove ALOGI log

#define jack_d

//#define jack_d ALOGI

#define jack_error ALOGE

#define MEMORY_SIZE 10*1024

namespace android {

jack_shmtype_t Shm::jack_shmtype = shm_ANDROID;

/* The JACK SHM registry is a chunk of memory for keeping track of the

* shared memory used by each active JACK server. This allows the

* server to clean up shared memory when it exits. To avoid memory

* leakage due to kill -9, crashes or debugger-driven exits, this

* cleanup is also done when a new instance of that server starts.

/* per-process global data for the SHM interfaces */

jack_shm_id_t Shm::registry_id; /* SHM id for the registry */

jack_shm_fd_t Shm::registry_fd = JACK_SHM_REGISTRY_FD;

jack_shm_info_t Shm::registry_info = {

JACK_SHM_NULL_INDEX, 0, 0, { MAP_FAILED }

};

/* pointers to registry header and array */

jack_shm_header_t *Shm::jack_shm_header = NULL;

jack_shm_registry_t *Shm::jack_shm_registry = NULL;

char Shm::jack_shm_server_prefix[JACK_SERVER_NAME_SIZE+1] = "";

/* jack_shm_lock_registry() serializes updates to the shared memory

* segment JACK uses to keep track of the SHM segments allocated to

* all its processes, including multiple servers.

* This is not a high-contention lock, but it does need to work across

* multiple processes. High transaction rates and realtime safety are

* not required. Any solution needs to at least be portable to POSIX

* and POSIX-like systems.

* We must be particularly careful to ensure that the lock be released

* if the owning process terminates abnormally. Otherwise, a segfault

* or kill -9 at the wrong moment could prevent JACK from ever running

* again on that machine until after a reboot.

#define JACK_SEMAPHORE_KEY 0x282929

#define JACK_SHM_REGISTRY_KEY JACK_SEMAPHORE_KEY

#define JACK_REGISTRY_NAME "/jack-shm-registry"

int Shm::semid = -1;

pthread_mutex_t Shm::mutex = PTHREAD_MUTEX_INITIALIZER;

//sp<IAndroidShm> Shm::mShmService;

sp<IMemoryHeap> Shm::mShmMemBase[JACK_SHM_HEAP_ENOUGH_COUNT] = {0,};

Shm* Shm::ref = NULL;

Shm* Shm::Instantiate() {

if(Shm::ref == NULL) {

jack_d("shm::Instantiate is called");

Shm::ref = new Shm;

//AndroidShm::instantiate();

}

return ref;

}

Shm::Shm() { }

Shm::~Shm() { }

sp<IAndroidShm> Shm::getShmService(){

return interface_cast<IAndroidShm>(defaultServiceManager()->getService(String16("com.samsung.android.jam.IAndroidShm")));

}

//sp<IAndroidShm>& Shm::getShmService() {

// if (mShmService.get() == 0) {

// sp<IServiceManager> sm = defaultServiceManager();

// sp<IBinder> binder;

// do {

// binder = sm->getService(String16("com.samsung.android.jam.IAndroidShm"));

// if (binder != 0)

// break;

// ALOGW("CameraService not published, waiting...");

// usleep(500000); // 0.5 s

// } while(true);

// mShmService = interface_cast<IAndroidShm>(binder);

// }

// ALOGE_IF(mShmService==0, "no CameraService!?");

// return mShmService;

//}

void Shm::shm_copy_from_registry (jack_shm_info_t* /*si*/, jack_shm_registry_index_t ) {

// not used

}

void Shm::shm_copy_to_registry (jack_shm_info_t* /*si*/, jack_shm_registry_index_t*) {

// not used

}

void Shm::jack_release_shm_entry (jack_shm_registry_index_t index) {

/* the registry must be locked */

jack_shm_registry[index].size = 0;

jack_shm_registry[index].allocator = 0;

memset (&jack_shm_registry[index].id, 0,

sizeof (jack_shm_registry[index].id));

jack_shm_registry[index].fd = 0;

}

int Shm::release_shm_info (jack_shm_registry_index_t index) {

/* must NOT have the registry locked */

if (jack_shm_registry[index].allocator == GetPID()) {

if (jack_shm_lock_registry () < 0) {

jack_error ("jack_shm_lock_registry fails...");

return -1;

}

jack_release_shm_entry (index);

jack_shm_unlock_registry ();

jack_d ("release_shm_info: success!");

}

else

jack_error ("release_shm_info: error!");

return 0;

}

char* Shm::shm_addr (unsigned int fd) {

if(fd >= JACK_SHM_HEAP_ENOUGH_COUNT) {

jack_error("ignore to get memory buffer : index[%d] is too big", fd);

return NULL;

}

sp<IAndroidShm> service = Shm::getShmService();

if(service == NULL){

jack_error("shm service is null");

return NULL;

}

mShmMemBase[fd] = service->getBuffer(fd);

if(mShmMemBase[fd] == NULL) {

jack_error("fail to get memory buffer");

return NULL;

}

return ((char *) mShmMemBase[fd]->getBase());

}

int Shm::shm_lock_registry (void) {

pthread_mutex_lock (&mutex);

return 0;

}

void Shm::shm_unlock_registry (void) {

pthread_mutex_unlock (&mutex);

}

void Shm::release_shm_entry (jack_shm_registry_index_t index) {

/* the registry must be locked */

jack_shm_registry[index].size = 0;

jack_shm_registry[index].allocator = 0;

memset (&jack_shm_registry[index].id, 0,

sizeof (jack_shm_registry[index].id));

}

void Shm::remove_shm (jack_shm_id_t *id) {

int shm_fd = -1;

jack_d("remove_id [%s]",(char*)id);

if(!strcmp((const char*)id, JACK_REGISTRY_NAME)) {

shm_fd = registry_fd;

} else {

for (int i = 0; i < MAX_SHM_ID; i++) {

if(!strcmp((const char*)id, jack_shm_registry[i].id)) {

shm_fd = jack_shm_registry[i].fd;

break;

}

if (shm_fd >= 0) {

sp<IAndroidShm> service = getShmService();

if(service != NULL) {

service->removeShm(shm_fd);

} else {

jack_error("shm service is null");

}

jack_d ("[APA] jack_remove_shm : ok ");

}

int Shm::access_registry (jack_shm_info_t * ri) {

jack_d("access_registry\n");

/* registry must be locked */

sp<IAndroidShm> service = getShmService();

if(service == NULL){

jack_error("shm service is null");

return EINVAL;

}

int shm_fd = service->getRegistryIndex();

strncpy (registry_id, JACK_REGISTRY_NAME, sizeof (registry_id) - 1);

registry_id[sizeof (registry_id) - 1] = '\0';

if(service->isAllocated(shm_fd) == FALSE) {

//jack_error ("Cannot mmap shm registry segment (%s)",

// strerror (errno));

jack_error ("Cannot mmap shm registry segment");

//close (shm_fd);

ri->ptr.attached_at = NULL;

registry_fd = JACK_SHM_REGISTRY_FD;

return EINVAL;

}

ri->fd = shm_fd;

registry_fd = shm_fd;

ri->ptr.attached_at = shm_addr(shm_fd);

if(ri->ptr.attached_at == NULL) {

ALOGE("attached pointer is null !");

jack_shm_header = NULL;

jack_shm_registry = NULL;

return 0;

}

/* set up global pointers */

ri->index = JACK_SHM_REGISTRY_INDEX;

jack_shm_header = (jack_shm_header_t*)(ri->ptr.attached_at);

jack_shm_registry = (jack_shm_registry_t *) (jack_shm_header + 1);

jack_d("jack_shm_header[%p],jack_shm_registry[%p]", jack_shm_header, jack_shm_registry);

//close (shm_fd); // steph

return 0;

}

int Shm::GetUID() {

return geteuid();

}

int Shm::GetPID() {

return getpid();

}

int Shm::jack_shm_lock_registry (void) {

// TODO: replace semaphore to mutex

pthread_mutex_lock (&mutex);

return 0;

}

void Shm::jack_shm_unlock_registry (void) {

// TODO: replace semaphore to mutex

pthread_mutex_unlock (&mutex);

return;

}

void Shm::shm_init_registry () {

if(jack_shm_header == NULL)

return;

/* registry must be locked */

memset (jack_shm_header, 0, JACK_SHM_REGISTRY_SIZE);

jack_shm_header->magic = JACK_SHM_MAGIC;

//jack_shm_header->protocol = JACK_PROTOCOL_VERSION;

jack_shm_header->type = jack_shmtype;

jack_shm_header->size = JACK_SHM_REGISTRY_SIZE;

jack_shm_header->hdr_len = sizeof (jack_shm_header_t);

jack_shm_header->entry_len = sizeof (jack_shm_registry_t);

for (int i = 0; i < MAX_SHM_ID; ++i) {

jack_shm_registry[i].index = i;

}

void Shm::set_server_prefix (const char *server_name) {

snprintf (jack_shm_server_prefix, sizeof (jack_shm_server_prefix),

"jack-%d:%s:", GetUID(), server_name);

}

/* create a new SHM registry segment

* sets up global registry pointers, if successful

* returns: 0 if registry created successfully

* nonzero error code if unable to allocate a new registry

int Shm::create_registry (jack_shm_info_t * ri) {

jack_d("create_registry\n");

/* registry must be locked */

int shm_fd = 0;

strncpy (registry_id, JACK_REGISTRY_NAME, sizeof (registry_id) - 1);

registry_id[sizeof (registry_id) - 1] = '\0';

sp<IAndroidShm> service = getShmService();

if(service == NULL){

jack_error("shm service is null");

return EINVAL;

}

if((shm_fd = service->allocShm(JACK_SHM_REGISTRY_SIZE)) < 0) {

jack_error("Cannot create shm registry segment");

registry_fd = JACK_SHM_REGISTRY_FD;

return EINVAL;

}

service->setRegistryIndex(shm_fd);

/* set up global pointers */

ri->fd = shm_fd;

ri->index = JACK_SHM_REGISTRY_INDEX;

registry_fd = shm_fd;

ri->ptr.attached_at = shm_addr(shm_fd);

ri->size = JACK_SHM_REGISTRY_SIZE;

jack_shm_header = (jack_shm_header_t*)(ri->ptr.attached_at);

jack_shm_registry = (jack_shm_registry_t *) (jack_shm_header + 1);

jack_d("create_registry jack_shm_header[%p], jack_shm_registry[%p]", jack_shm_header, jack_shm_registry);

/* initialize registry contents */

shm_init_registry ();

//close (shm_fd); // steph

return 0;

}

int Shm::shm_validate_registry () {

/* registry must be locked */

if(jack_shm_header == NULL) {

return -1;

}

if ((jack_shm_header->magic == JACK_SHM_MAGIC)

//&& (jack_shm_header->protocol == JACK_PROTOCOL_VERSION)

&& (jack_shm_header->type == jack_shmtype)

&& (jack_shm_header->size == JACK_SHM_REGISTRY_SIZE)

&& (jack_shm_header->hdr_len == sizeof (jack_shm_header_t))

&& (jack_shm_header->entry_len == sizeof (jack_shm_registry_t))) {

return 0; /* registry OK */

}

return -1;

}

int Shm::server_initialize_shm (int new_registry) {

int rc;

jack_d("server_initialize_shm\n");

if (jack_shm_header)

return 0; /* already initialized */

if (shm_lock_registry () < 0) {

jack_error ("jack_shm_lock_registry fails...");

return -1;

}

rc = access_registry (&registry_info);

if (new_registry) {

remove_shm (&registry_id);

rc = ENOENT;

}

switch (rc) {

case ENOENT: /* registry does not exist */

rc = create_registry (&registry_info);

break;

case 0: /* existing registry */

if (shm_validate_registry () == 0)

break;

/* else it was invalid, so fall through */

case EINVAL: /* bad registry */

/* Apparently, this registry was created by an older

* JACK version. Delete it so we can try again. */

release_shm (&registry_info);

remove_shm (&registry_id);

if ((rc = create_registry (&registry_info)) != 0) {

//jack_error ("incompatible shm registry (%s)",

// strerror (errno));

jack_error ("incompatible shm registry");

//#ifndef USE_POSIX_SHM

// jack_error ("to delete, use `ipcrm -M 0x%0.8x'", JACK_SHM_REGISTRY_KEY);

//#endif

}

break;

default: /* failure return code */

break;

}

shm_unlock_registry ();

return rc;

}

// here begin the API

int Shm::register_server (const char *server_name, int new_registry) {

int i, res = 0;

jack_d("register_server new_registry[%d]\n", new_registry);

set_server_prefix (server_name);

if (server_initialize_shm (new_registry))

return ENOMEM;

if (shm_lock_registry () < 0) {

jack_error ("jack_shm_lock_registry fails...");

return -1;

}

/* See if server_name already registered. Since server names

* are per-user, we register the unique server prefix string.

for (i = 0; i < MAX_SERVERS; i++) {

if (strncmp (jack_shm_header->server[i].name,

jack_shm_server_prefix,

JACK_SERVER_NAME_SIZE) != 0)

continue; /* no match */

if (jack_shm_header->server[i].pid == GetPID()) {

res = 0; /* it's me */

goto unlock;

}

/* see if server still exists */

if (kill (jack_shm_header->server[i].pid, 0) == 0) {

res = EEXIST; /* other server running */

goto unlock;

}

/* it's gone, reclaim this entry */

memset (&jack_shm_header->server[i], 0,

sizeof (jack_shm_server_t));

}

/* find a free entry */

for (i = 0; i < MAX_SERVERS; i++) {

if (jack_shm_header->server[i].pid == 0)

break;

}

if (i >= MAX_SERVERS) {

res = ENOSPC; /* out of space */

goto unlock;

}

/* claim it */

jack_shm_header->server[i].pid = GetPID();

strncpy (jack_shm_header->server[i].name,

jack_shm_server_prefix,

JACK_SERVER_NAME_SIZE - 1);

jack_shm_header->server[i].name[JACK_SERVER_NAME_SIZE - 1] = '\0';

unlock:

shm_unlock_registry ();

return res;

}

int Shm::unregister_server (const char * /* server_name */) {

int i;

if (shm_lock_registry () < 0) {

jack_error ("jack_shm_lock_registry fails...");

return -1;

}

for (i = 0; i < MAX_SERVERS; i++) {

if (jack_shm_header->server[i].pid == GetPID()) {

memset (&jack_shm_header->server[i], 0,

sizeof (jack_shm_server_t));

}

shm_unlock_registry ();

return 0;

}

int Shm::initialize_shm (const char *server_name) {

int rc;

if (jack_shm_header)

return 0; /* already initialized */

set_server_prefix (server_name);

if (shm_lock_registry () < 0) {

jack_error ("jack_shm_lock_registry fails...");

return -1;

}

if ((rc = access_registry (&registry_info)) == 0) {

if ((rc = shm_validate_registry ()) != 0) {

jack_error ("Incompatible shm registry, "

"are jackd and libjack in sync?");

}

shm_unlock_registry ();

return rc;

}

int Shm::initialize_shm_server (void) {

// not used

return 0;

}

int Shm::initialize_shm_client (void) {

// not used

return 0;

}

int Shm::cleanup_shm (void) {

int i;

int destroy;

jack_shm_info_t copy;

if (shm_lock_registry () < 0) {

jack_error ("jack_shm_lock_registry fails...");

return -1;

}

for (i = 0; i < MAX_SHM_ID; i++) {

jack_shm_registry_t* r;

r = &jack_shm_registry[i];

memcpy (&copy, r, sizeof (jack_shm_info_t));

destroy = FALSE;

/* ignore unused entries */

if (r->allocator == 0)

continue;

/* is this my shm segment? */

if (r->allocator == GetPID()) {

/* allocated by this process, so unattach

and destroy. */

release_shm (&copy);

destroy = TRUE;

} else {

/* see if allocator still exists */

if (kill (r->allocator, 0)) {

if (errno == ESRCH) {

/* allocator no longer exists,

* so destroy */

destroy = TRUE;

}

if (destroy) {

int index = copy.index;

if ((index >= 0) && (index < MAX_SHM_ID)) {

remove_shm (&jack_shm_registry[index].id);

release_shm_entry (index);

}

r->size = 0;

r->allocator = 0;

}

shm_unlock_registry ();

return TRUE;

}

jack_shm_registry_t * Shm::get_free_shm_info () {

/* registry must be locked */

jack_shm_registry_t* si = NULL;

int i;

for (i = 0; i < MAX_SHM_ID; ++i) {

if (jack_shm_registry[i].size == 0) {

break;

}

if (i < MAX_SHM_ID) {

si = &jack_shm_registry[i];

}

return si;

}

int Shm::shmalloc (const char * /*shm_name*/, jack_shmsize_t size, jack_shm_info_t* si) {

jack_shm_registry_t* registry;

int shm_fd;

int rc = -1;

char name[SHM_NAME_MAX+1];

if (shm_lock_registry () < 0) {

jack_error ("jack_shm_lock_registry fails...");

return -1;

}

sp<IAndroidShm> service = getShmService();

if(service == NULL){

rc = errno;

jack_error("shm service is null");

goto unlock;

}

if ((registry = get_free_shm_info ()) == NULL) {

jack_error ("shm registry full");

goto unlock;

}

snprintf (name, sizeof (name), "/jack-%d-%d", GetUID(), registry->index);

if (strlen (name) >= sizeof (registry->id)) {

jack_error ("shm segment name too long %s", name);

goto unlock;

}

if((shm_fd = service->allocShm(size)) < 0) {

rc = errno;

jack_error ("Cannot create shm segment %s", name);

goto unlock;

}

//close (shm_fd);

registry->size = size;

strncpy (registry->id, name, sizeof (registry->id) - 1);

registry->id[sizeof (registry->id) - 1] = '\0';

registry->allocator = GetPID();

registry->fd = shm_fd;

si->fd = shm_fd;

si->index = registry->index;

si->ptr.attached_at = MAP_FAILED; /* not attached */

rc = 0; /* success */

jack_d ("[APA] jack_shmalloc : ok ");

unlock:

shm_unlock_registry ();

return rc;

}

void Shm::release_shm (jack_shm_info_t* /*si*/) {

// do nothing

}

void Shm::release_lib_shm (jack_shm_info_t* /*si*/) {

// do nothing

}

void Shm::destroy_shm (jack_shm_info_t* si) {

/* must NOT have the registry locked */

if (si->index == JACK_SHM_NULL_INDEX)

return; /* segment not allocated */

remove_shm (&jack_shm_registry[si->index].id);

release_shm_info (si->index);

}

int Shm::attach_shm (jack_shm_info_t* si) {

jack_shm_registry_t *registry = &jack_shm_registry[si->index];

if((si->ptr.attached_at = shm_addr(registry->fd)) == NULL) {

jack_error ("Cannot mmap shm segment %s", registry->id);

close (si->fd);

return -1;

}

return 0;

}

int Shm::attach_lib_shm (jack_shm_info_t* si) {

int res = attach_shm(si);

if (res == 0)

si->size = jack_shm_registry[si->index].size; // Keep size in si struct

return res;

}

int Shm::attach_shm_read (jack_shm_info_t* si) {

jack_shm_registry_t *registry = &jack_shm_registry[si->index];

if((si->ptr.attached_at = shm_addr(registry->fd)) == NULL) {

jack_error ("Cannot mmap shm segment %s", registry->id);

close (si->fd);

return -1;

}

return 0;

}

int Shm::attach_lib_shm_read (jack_shm_info_t* si) {

int res = attach_shm_read(si);

if (res == 0)

si->size = jack_shm_registry[si->index].size; // Keep size in si struct

return res;

}

int Shm::resize_shm (jack_shm_info_t* si, jack_shmsize_t size) {

jack_shm_id_t id;

/* The underlying type of `id' differs for SYSV and POSIX */

memcpy (&id, &jack_shm_registry[si->index].id, sizeof (id));

release_shm (si);

destroy_shm (si);

if (shmalloc ((char *) id, size, si)) {

return -1;

}

return attach_shm (si);

}

void Shm::jack_shm_copy_from_registry (jack_shm_info_t* si, jack_shm_registry_index_t t) {

Shm::Instantiate()->shm_copy_from_registry(si,t);

}

void Shm::jack_shm_copy_to_registry (jack_shm_info_t* si, jack_shm_registry_index_t* t) {

Shm::Instantiate()->shm_copy_to_registry(si,t);

}

int Shm::jack_release_shm_info (jack_shm_registry_index_t t) {

return Shm::Instantiate()->release_shm_info(t);

}

char* Shm::jack_shm_addr (jack_shm_info_t* si) {

if(si != NULL) {

return (char*)si->ptr.attached_at;

} else {

jack_error ("jack_shm_addr : jack_shm_info_t is NULL!");

return NULL;

}

int Shm::jack_register_server (const char *server_name, int new_registry) {

return Shm::Instantiate()->register_server(server_name, new_registry);

}

int Shm::jack_unregister_server (const char *server_name) {

return Shm::Instantiate()->unregister_server(server_name);

}

int Shm::jack_initialize_shm (const char *server_name) {

return Shm::Instantiate()->initialize_shm(server_name);

}

int Shm::jack_initialize_shm_server (void) {

return Shm::Instantiate()->initialize_shm_server();

}

int Shm::jack_initialize_shm_client () {

return Shm::Instantiate()->initialize_shm_client();

}

int Shm::jack_cleanup_shm (void) {

return Shm::Instantiate()->cleanup_shm();

}

int Shm::jack_shmalloc (const char *shm_name, jack_shmsize_t size, jack_shm_info_t* result) {

return Shm::Instantiate()->shmalloc(shm_name, size, result);

}

void Shm::jack_release_shm (jack_shm_info_t* si) {

Shm::Instantiate()->release_shm(si);

}

void Shm::jack_release_lib_shm (jack_shm_info_t* si) {

Shm::Instantiate()->release_lib_shm(si);

}

void Shm::jack_destroy_shm (jack_shm_info_t* si) {

Shm::Instantiate()->destroy_shm(si);

}

int Shm::jack_attach_shm (jack_shm_info_t* si) {

return Shm::Instantiate()->attach_shm(si);

}

int Shm::jack_attach_lib_shm (jack_shm_info_t* si) {

return Shm::Instantiate()->attach_lib_shm(si);

}

int Shm::jack_attach_shm_read (jack_shm_info_t* si) {

return Shm::Instantiate()->attach_shm_read(si);

}

int Shm::jack_attach_lib_shm_read (jack_shm_info_t* si) {

return Shm::Instantiate()->attach_lib_shm_read(si);

}

int Shm::jack_resize_shm (jack_shm_info_t* si, jack_shmsize_t size) {

return Shm::Instantiate()->resize_shm(si, size);

}

};

void jack_shm_copy_from_registry (jack_shm_info_t* si, jack_shm_registry_index_t t) {

android::Shm::jack_shm_copy_from_registry(si, t);

}

void jack_shm_copy_to_registry (jack_shm_info_t* si, jack_shm_registry_index_t* t) {

android::Shm::jack_shm_copy_to_registry(si, t);

}

int jack_release_shm_info (jack_shm_registry_index_t t) {

return android::Shm::jack_release_shm_info(t);

}

char* jack_shm_addr (jack_shm_info_t* si) {

return android::Shm::jack_shm_addr(si);

}

int jack_register_server (const char *server_name, int new_registry) {

return android::Shm::jack_register_server(server_name, new_registry);

}

int jack_unregister_server (const char *server_name) {

return android::Shm::jack_unregister_server(server_name);

}

int jack_initialize_shm (const char *server_name) {

return android::Shm::jack_initialize_shm(server_name);

}

int jack_initialize_shm_server (void) {

return android::Shm::jack_initialize_shm_server();

}

int jack_initialize_shm_client (void) {

return android::Shm::jack_initialize_shm_client();

}

int jack_cleanup_shm (void) {

return android::Shm::jack_cleanup_shm();

}

int jack_shmalloc (const char *shm_name, jack_shmsize_t size, jack_shm_info_t* result) {

return android::Shm::jack_shmalloc(shm_name, size, result);

}

void jack_release_shm (jack_shm_info_t* si) {

android::Shm::jack_release_shm(si);

}

void jack_release_lib_shm (jack_shm_info_t* si) {

android::Shm::jack_release_lib_shm(si);

}

void jack_destroy_shm (jack_shm_info_t* si) {

android::Shm::jack_destroy_shm(si);

}

int jack_attach_shm (jack_shm_info_t* si) {

return android::Shm::jack_attach_shm(si);

}

int jack_attach_lib_shm (jack_shm_info_t* si) {

return android::Shm::jack_attach_lib_shm(si);

}

int jack_attach_shm_read (jack_shm_info_t* si) {

return android::Shm::jack_attach_shm_read(si);

}

int jack_attach_lib_shm_read (jack_shm_info_t* si) {

return android::Shm::jack_attach_lib_shm_read(si);

}

int jack_resize_shm (jack_shm_info_t* si, jack_shmsize_t size) {

return android::Shm::jack_resize_shm(si, size);

}

void jack_instantiate() {

android::AndroidShm::instantiate();

}

jack2/android/Shm.cpp at develop · jackaudio/jack2 · GitHub

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