opencc_error opencc_errno(void)
{
if (!lib_initialized)
lib_initialize();
return errnum;
}
void opencc_perror(const char* spec) {
if (!lib_initialized) {
lib_initialize();
}
perr(spec);
perr("\n");
switch (errnum) {
case OPENCC_ERROR_VOID:
break;
case OPENCC_ERROR_DICTLOAD:
dictionary_perror(_("Dictionary loading error"));
break;
case OPENCC_ERROR_CONFIG:
config_perror(_("Configuration error"));
break;
case OPENCC_ERROR_CONVERTER:
converter_perror(_("Converter error"));
break;
case OPENCC_ERROR_ENCODING:
perr(_("Encoding error"));
break;
default:
perr(_("Unknown"));
}
perr("\n");
}
opencc_t opencc_open(const char* config_file) {
if (!lib_initialized) {
lib_initialize();
}
OpenccDesc* opencc;
opencc = (OpenccDesc*)malloc(sizeof(OpenccDesc));
opencc->dict_chain = NULL;
opencc->converter = converter_open();
converter_set_conversion_mode(opencc->converter, OPENCC_CONVERSION_FAST);
if (config_file == NULL) {
/* TODO load default */
assert(0);
} else {
/* Load config */
Config* config = config_open(config_file);
if (config == (Config*)-1) {
errnum = OPENCC_ERROR_CONFIG;
return (opencc_t)-1;
}
opencc->dict_chain = config_get_dict_chain(config);
converter_assign_dictionary(opencc->converter, opencc->dict_chain);
config_close(config);
}
return (opencc_t)opencc;
}
opencc_t opencc_open(const char * config_file, const char* home_path)
{
if (!lib_initialized)
lib_initialize();
opencc_desc * opencc;
opencc = (opencc_desc *) malloc(sizeof(opencc_desc));
opencc->dictionary_set = NULL;
opencc->converter = converter_open();
converter_set_conversion_mode(opencc->converter, OPENCC_CONVERSION_FAST);
/* 加載默認辭典 */
int retval;
if (config_file == NULL)
retval = 0;
else
{
config_t config = config_open(config_file, home_path);
if (config == (config_t) -1)
{
errnum = OPENCC_ERROR_CONFIG;
return (opencc_t) -1;
}
opencc->dictionary_set = config_get_dictionary_set(config);
converter_assign_dictionary(opencc->converter, opencc->dictionary_set);
config_close(config);
}
return (opencc_t) opencc;
}
int opencc_dict_load(opencc_t t_opencc, const char * dict_filename,
opencc_dictionary_type dict_type)
{
if (!lib_initialized)
lib_initialize();
opencc_desc * opencc = (opencc_desc *) t_opencc;
dictionary_group_t dictionary_group;
if (opencc->dictionary_set == NULL)
{
opencc->dictionary_set = dictionary_set_open();
dictionary_group = dictionary_set_new_group(opencc->dictionary_set);
}
else
{
dictionary_group = dictionary_set_get_group(opencc->dictionary_set, 0);
}
int retval;
retval = dictionary_group_load(dictionary_group, dict_filename, dict_type);
if (retval == -1)
{
errnum = OPENCC_ERROR_DICTLOAD;
return -1;
}
converter_assign_dictionary(opencc->converter, opencc->dictionary_set);
return retval;
}
void opencc_set_conversion_mode(opencc_t t_opencc,
opencc_conversion_mode conversion_mode) {
if (!lib_initialized) {
lib_initialize();
}
OpenccDesc* opencc = (OpenccDesc*)t_opencc;
converter_set_conversion_mode(opencc->converter, conversion_mode);
}
int opencc_close(opencc_t t_opencc) {
if (!lib_initialized) {
lib_initialize();
}
OpenccDesc* opencc = (OpenccDesc*)t_opencc;
converter_close(opencc->converter);
if (opencc->dict_chain != NULL) {
dict_chain_delete(opencc->dict_chain);
}
free(opencc);
return 0;
}
int opencc_close(opencc_t t_opencc)
{
if (!lib_initialized)
lib_initialize();
opencc_desc * opencc = (opencc_desc *) t_opencc;
converter_close(opencc->converter);
if (opencc->dictionary_set != NULL)
dictionary_set_close(opencc->dictionary_set);
free(opencc);
return 0;
}
size_t opencc_convert(opencc_t t_opencc, ucs4_t ** inbuf, size_t * inbuf_left,
ucs4_t ** outbuf, size_t * outbuf_left)
{
if (!lib_initialized)
lib_initialize();
opencc_desc * opencc = (opencc_desc *) t_opencc;
size_t retval = converter_convert
(opencc->converter, inbuf, inbuf_left, outbuf, outbuf_left);
if (retval == (size_t) -1)
errnum = OPENCC_ERROR_CONVERTER;
return retval;
}
int opencc_dict_load(opencc_t t_opencc,
const char* dict_filename,
opencc_dictionary_type dict_type) {
if (!lib_initialized) {
lib_initialize();
}
OpenccDesc* opencc = (OpenccDesc*)t_opencc;
DictGroup* DictGroup;
if (opencc->dict_chain == NULL) {
opencc->dict_chain = dict_chain_new(NULL);
DictGroup = dict_chain_add_group(opencc->dict_chain);
} else {
DictGroup = dict_chain_get_group(opencc->dict_chain, 0);
}
int retval = dict_group_load(DictGroup, dict_filename, dict_type);
if (retval == -1) {
errnum = OPENCC_ERROR_DICTLOAD;
return -1;
}
converter_assign_dictionary(opencc->converter, opencc->dict_chain);
return retval;
}
char* opencc_convert_utf8(opencc_t t_opencc, const char* inbuf, size_t length) {
if (!lib_initialized) {
lib_initialize();
}
size_t actual_length = strlen(inbuf);
if ((length == (size_t)-1) || (length > actual_length)) {
length = actual_length;
}
ucs4_t* winbuf = utf8_to_ucs4(inbuf, length);
if (winbuf == (ucs4_t*)-1) {
/* Can not convert input UTF8 to UCS4 */
errnum = OPENCC_ERROR_ENCODING;
return (char*)-1;
}
/* Set up UTF8 buffer */
size_t outbuf_len = length;
size_t outsize = outbuf_len;
char* original_outbuf = (char*)malloc(sizeof(char) * (outbuf_len + 1));
char* outbuf = original_outbuf;
original_outbuf[0] = '\0';
/* Set conversion buffer */
size_t wbufsize = length + 64;
ucs4_t* woutbuf = (ucs4_t*)malloc(sizeof(ucs4_t) * (wbufsize + 1));
ucs4_t* pinbuf = winbuf;
ucs4_t* poutbuf = woutbuf;
size_t inbuf_left, outbuf_left;
inbuf_left = ucs4len(winbuf);
outbuf_left = wbufsize;
while (inbuf_left > 0) {
size_t retval = opencc_convert(t_opencc,
&pinbuf,
&inbuf_left,
&poutbuf,
&outbuf_left);
if (retval == (size_t)-1) {
free(outbuf);
free(winbuf);
free(woutbuf);
return (char*)-1;
}
*poutbuf = L'\0';
char* ubuff = ucs4_to_utf8(woutbuf, (size_t)-1);
if (ubuff == (char*)-1) {
free(outbuf);
free(winbuf);
free(woutbuf);
errnum = OPENCC_ERROR_ENCODING;
return (char*)-1;
}
size_t ubuff_len = strlen(ubuff);
while (ubuff_len > outsize) {
size_t outbuf_offset = outbuf - original_outbuf;
outsize += outbuf_len;
outbuf_len += outbuf_len;
original_outbuf =
(char*)realloc(original_outbuf, sizeof(char) * outbuf_len);
outbuf = original_outbuf + outbuf_offset;
}
strncpy(outbuf, ubuff, ubuff_len);
free(ubuff);
outbuf += ubuff_len;
*outbuf = '\0';
outbuf_left = wbufsize;
poutbuf = woutbuf;
}
free(winbuf);
free(woutbuf);
original_outbuf = (char*)realloc(original_outbuf,
sizeof(char) * (strlen(original_outbuf) + 1));
return original_outbuf;
}
char * opencc_convert_utf8(opencc_t t_opencc, const char * inbuf, size_t length)
{
if (!lib_initialized)
lib_initialize();
if (length == (size_t) -1 || length > strlen(inbuf))
length = strlen(inbuf);
/* 將輸入數據轉換爲ucs4_t字符串 */
ucs4_t * winbuf = utf8_to_ucs4(inbuf, length);
if (winbuf == (ucs4_t *) -1)
{
/* 輸入數據轉換失敗 */
errnum = OPENCC_ERROR_ENCODIND;
return (char *) -1;
}
/* 設置輸出UTF8文本緩衝區空間 */
size_t outbuf_len = length;
size_t outsize = outbuf_len;
char * original_outbuf = (char *) malloc(sizeof(char) * (outbuf_len + 1));
char * outbuf = original_outbuf;
original_outbuf[0] = '\0';
/* 設置轉換緩衝區空間 */
size_t wbufsize = length + 64;
ucs4_t * woutbuf = (ucs4_t *) malloc(sizeof(ucs4_t) * (wbufsize + 1));
ucs4_t * pinbuf = winbuf;
ucs4_t * poutbuf = woutbuf;
size_t inbuf_left, outbuf_left;
inbuf_left = ucs4len(winbuf);
outbuf_left = wbufsize;
while (inbuf_left > 0)
{
size_t retval = opencc_convert(t_opencc, &pinbuf, &inbuf_left, &poutbuf, &outbuf_left);
if (retval == (size_t) -1)
{
free(outbuf);
free(winbuf);
free(woutbuf);
return (char *) -1;
}
*poutbuf = L'\0';
char * ubuff = ucs4_to_utf8(woutbuf, (size_t) -1);
if (ubuff == (char *) -1)
{
free(outbuf);
free(winbuf);
free(woutbuf);
errnum = OPENCC_ERROR_ENCODIND;
return (char *) -1;
}
size_t ubuff_len = strlen(ubuff);
while (ubuff_len > outsize)
{
size_t outbuf_offset = outbuf - original_outbuf;
outsize += outbuf_len;
outbuf_len += outbuf_len;
original_outbuf = (char *) realloc(original_outbuf, sizeof(char) * outbuf_len);
outbuf = original_outbuf + outbuf_offset;
}
strncpy(outbuf, ubuff, ubuff_len);
free(ubuff);
outbuf += ubuff_len;
*outbuf = '\0';
outbuf_left = wbufsize;
poutbuf = woutbuf;
}
free(winbuf);
free(woutbuf);
original_outbuf = (char *) realloc(original_outbuf,
sizeof(char) * (strlen(original_outbuf) + 1));
return original_outbuf;
}
void os_start(void)
{
int i;
slldbg("Entry\n");
/* Initialize all task lists */
dq_init(&g_readytorun);
dq_init(&g_pendingtasks);
dq_init(&g_waitingforsemaphore);
#ifndef CONFIG_DISABLE_SIGNALS
dq_init(&g_waitingforsignal);
#endif
#ifndef CONFIG_DISABLE_MQUEUE
dq_init(&g_waitingformqnotfull);
dq_init(&g_waitingformqnotempty);
#endif
#ifdef CONFIG_PAGING
dq_init(&g_waitingforfill);
#endif
dq_init(&g_inactivetasks);
sq_init(&g_delayeddeallocations);
/* Initialize the logic that determine unique process IDs. */
g_lastpid = 0;
for (i = 0; i < CONFIG_MAX_TASKS; i++)
{
g_pidhash[i].tcb = NULL;
g_pidhash[i].pid = INVALID_PROCESS_ID;
}
/* Assign the process ID of ZERO to the idle task */
g_pidhash[ PIDHASH(0)].tcb = &g_idletcb;
g_pidhash[ PIDHASH(0)].pid = 0;
/* Initialize a TCB for this thread of execution. NOTE: The default
* value for most components of the g_idletcb are zero. The entire
* structure is set to zero. Then only the (potentially) non-zero
* elements are initialized. NOTE: The idle task is the only task in
* that has pid == 0 and sched_priority == 0.
*/
bzero((void*)&g_idletcb, sizeof(_TCB));
g_idletcb.task_state = TSTATE_TASK_RUNNING;
g_idletcb.entry.main = (main_t)os_start;
#if CONFIG_TASK_NAME_SIZE > 0
strncpy(g_idletcb.name, g_idlename, CONFIG_TASK_NAME_SIZE-1);
g_idletcb.argv[0] = g_idletcb.name;
#else
g_idletcb.argv[0] = (char*)g_idlename;
#endif /* CONFIG_TASK_NAME_SIZE */
/* Then add the idle task's TCB to the head of the ready to run list */
dq_addfirst((FAR dq_entry_t*)&g_idletcb, (FAR dq_queue_t*)&g_readytorun);
/* Initialize the processor-specific portion of the TCB */
g_idletcb.flags = TCB_FLAG_TTYPE_KERNEL;
up_initial_state(&g_idletcb);
/* Initialize the semaphore facility(if in link). This has to be done
* very early because many subsystems depend upon fully functional
* semaphores.
*/
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (sem_initialize != NULL)
#endif
{
sem_initialize();
}
/* Initialize the memory manager */
#ifndef CONFIG_HEAP_BASE
{
FAR void *heap_start;
size_t heap_size;
up_allocate_heap(&heap_start, &heap_size);
kmm_initialize(heap_start, heap_size);
}
#else
kmm_initialize((void*)CONFIG_HEAP_BASE, CONFIG_HEAP_SIZE);
#endif
/* Initialize the interrupt handling subsystem (if included) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (irq_initialize != NULL)
#endif
{
irq_initialize();
}
/* Initialize the watchdog facility (if included in the link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (wd_initialize != NULL)
#endif
{
wd_initialize();
}
/* Initialize the POSIX timer facility (if included in the link) */
#ifndef CONFIG_DISABLE_CLOCK
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (clock_initialize != NULL)
#endif
{
clock_initialize();
}
#endif
#ifndef CONFIG_DISABLE_POSIX_TIMERS
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (timer_initialize != NULL)
#endif
{
timer_initialize();
}
#endif
/* Initialize the signal facility (if in link) */
#ifndef CONFIG_DISABLE_SIGNALS
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (sig_initialize != NULL)
#endif
{
sig_initialize();
}
#endif
/* Initialize the named message queue facility (if in link) */
#ifndef CONFIG_DISABLE_MQUEUE
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (mq_initialize != NULL)
#endif
{
mq_initialize();
}
#endif
/* Initialize the thread-specific data facility (if in link) */
#ifndef CONFIG_DISABLE_PTHREAD
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (pthread_initialize != NULL)
#endif
{
pthread_initialize();
}
#endif
/* Initialize the file system (needed to support device drivers) */
#if CONFIG_NFILE_DESCRIPTORS > 0
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (fs_initialize != NULL)
#endif
{
fs_initialize();
}
#endif
/* Initialize the network system */
#ifdef CONFIG_NET
#if 0
if (net_initialize != NULL)
#endif
{
net_initialize();
}
#endif
/* The processor specific details of running the operating system
* will be handled here. Such things as setting up interrupt
* service routines and starting the clock are some of the things
* that are different for each processor and hardware platform.
*/
up_initialize();
/* Initialize the C libraries (if included in the link). This
* is done last because the libraries may depend on the above.
*/
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (lib_initialize != NULL)
#endif
{
lib_initialize();
}
/* Create stdout, stderr, stdin on the IDLE task. These will be
* inherited by all of the threads created by the IDLE task.
*/
(void)sched_setupidlefiles(&g_idletcb);
/* Create initial tasks and bring-up the system */
(void)os_bringup();
/* When control is return to this point, the system is idle. */
sdbg("Beginning Idle Loop\n");
for (;;)
{
/* Perform garbage collection (if it is not being done by the worker
* thread). This cleans-up memory de-allocations that were queued
* because they could not be freed in that execution context (for
* example, if the memory was freed from an interrupt handler).
*/
#ifndef CONFIG_SCHED_WORKQUEUE
/* We must have exclusive access to the memory manager to do this
* BUT the idle task cannot wait on a semaphore. So we only do
* the cleanup now if we can get the semaphore -- this should be
* possible because if the IDLE thread is running, no other task is!
*/
if (kmm_trysemaphore() == 0)
{
sched_garbagecollection();
kmm_givesemaphore();
}
#endif
/* Perform any processor-specific idle state operations */
up_idle();
}
}
void os_start(void)
{
int i;
slldbg("Entry\n");
/* Initialize RTOS Data ***************************************************/
/* Initialize all task lists */
dq_init(&g_readytorun);
dq_init(&g_pendingtasks);
dq_init(&g_waitingforsemaphore);
#ifndef CONFIG_DISABLE_SIGNALS
dq_init(&g_waitingforsignal);
#endif
#ifndef CONFIG_DISABLE_MQUEUE
dq_init(&g_waitingformqnotfull);
dq_init(&g_waitingformqnotempty);
#endif
#ifdef CONFIG_PAGING
dq_init(&g_waitingforfill);
#endif
dq_init(&g_inactivetasks);
sq_init(&g_delayed_kufree);
#if (defined(CONFIG_BUILD_PROTECTED) || defined(CONFIG_BUILD_KERNEL)) && \
defined(CONFIG_MM_KERNEL_HEAP)
sq_init(&g_delayed_kfree);
#endif
/* Initialize the logic that determine unique process IDs. */
g_lastpid = 0;
for (i = 0; i < CONFIG_MAX_TASKS; i++)
{
g_pidhash[i].tcb = NULL;
g_pidhash[i].pid = INVALID_PROCESS_ID;
}
/* Assign the process ID of ZERO to the idle task */
g_pidhash[PIDHASH(0)].tcb = &g_idletcb.cmn;
g_pidhash[PIDHASH(0)].pid = 0;
/* Initialize the IDLE task TCB *******************************************/
/* Initialize a TCB for this thread of execution. NOTE: The default
* value for most components of the g_idletcb are zero. The entire
* structure is set to zero. Then only the (potentially) non-zero
* elements are initialized. NOTE: The idle task is the only task in
* that has pid == 0 and sched_priority == 0.
*/
bzero((void*)&g_idletcb, sizeof(struct task_tcb_s));
g_idletcb.cmn.task_state = TSTATE_TASK_RUNNING;
g_idletcb.cmn.entry.main = (main_t)os_start;
g_idletcb.cmn.flags = TCB_FLAG_TTYPE_KERNEL;
/* Set the IDLE task name */
#if CONFIG_TASK_NAME_SIZE > 0
strncpy(g_idletcb.cmn.name, g_idlename, CONFIG_TASK_NAME_SIZE);
g_idletcb.cmn.name[CONFIG_TASK_NAME_SIZE] = '\0';
#endif /* CONFIG_TASK_NAME_SIZE */
/* Configure the task name in the argument list. The IDLE task does
* not really have an argument list, but this name is still useful
* for things like the NSH PS command.
*
* In the kernel mode build, the arguments are saved on the task's stack
* and there is no support that yet.
*/
#if CONFIG_TASK_NAME_SIZE > 0
g_idleargv[0] = g_idletcb.cmn.name;
#else
g_idleargv[0] = (FAR char *)g_idlename;
#endif /* CONFIG_TASK_NAME_SIZE */
g_idleargv[1] = NULL;
g_idletcb.argv = g_idleargv;
/* Then add the idle task's TCB to the head of the ready to run list */
dq_addfirst((FAR dq_entry_t*)&g_idletcb, (FAR dq_queue_t*)&g_readytorun);
/* Initialize the processor-specific portion of the TCB */
up_initial_state(&g_idletcb.cmn);
/* Initialize RTOS facilities *********************************************/
/* Initialize the semaphore facility. This has to be done very early
* because many subsystems depend upon fully functional semaphores.
*/
sem_initialize();
#if defined(MM_KERNEL_USRHEAP_INIT) || defined(CONFIG_MM_KERNEL_HEAP) || defined(CONFIG_MM_PGALLOC)
/* Initialize the memory manager */
{
FAR void *heap_start;
size_t heap_size;
#ifdef MM_KERNEL_USRHEAP_INIT
/* Get the user-mode heap from the platform specific code and configure
* the user-mode memory allocator.
*/
up_allocate_heap(&heap_start, &heap_size);
kumm_initialize(heap_start, heap_size);
#endif
#ifdef CONFIG_MM_KERNEL_HEAP
/* Get the kernel-mode heap from the platform specific code and configure
* the kernel-mode memory allocator.
*/
up_allocate_kheap(&heap_start, &heap_size);
kmm_initialize(heap_start, heap_size);
#endif
#ifdef CONFIG_MM_PGALLOC
/* If there is a page allocator in the configuration, then get the page
* heap information from the platform-specific code and configure the
* page allocator.
*/
up_allocate_pgheap(&heap_start, &heap_size);
mm_pginitialize(heap_start, heap_size);
#endif
}
#endif
#if defined(CONFIG_SCHED_HAVE_PARENT) && defined(CONFIG_SCHED_CHILD_STATUS)
/* Initialize tasking data structures */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (task_initialize != NULL)
#endif
{
task_initialize();
}
#endif
/* Initialize the interrupt handling subsystem (if included) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (irq_initialize != NULL)
#endif
{
irq_initialize();
}
/* Initialize the watchdog facility (if included in the link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (wd_initialize != NULL)
#endif
{
wd_initialize();
}
/* Initialize the POSIX timer facility (if included in the link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (clock_initialize != NULL)
#endif
{
clock_initialize();
}
#ifndef CONFIG_DISABLE_POSIX_TIMERS
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (timer_initialize != NULL)
#endif
{
timer_initialize();
}
#endif
#ifndef CONFIG_DISABLE_SIGNALS
/* Initialize the signal facility (if in link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (sig_initialize != NULL)
#endif
{
sig_initialize();
}
#endif
#ifndef CONFIG_DISABLE_MQUEUE
/* Initialize the named message queue facility (if in link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (mq_initialize != NULL)
#endif
{
mq_initialize();
}
#endif
#ifndef CONFIG_DISABLE_PTHREAD
/* Initialize the thread-specific data facility (if in link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (pthread_initialize != NULL)
#endif
{
pthread_initialize();
}
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
/* Initialize the file system (needed to support device drivers) */
fs_initialize();
#endif
#ifdef CONFIG_NET
/* Initialize the networking system. Network initialization is
* performed in two steps: (1) net_setup() initializes static
* configuration of the network support. This must be done prior
* to registering network drivers by up_initialize(). This step
* cannot require upon any hardware-depending features such as
* timers or interrupts.
*/
net_setup();
#endif
/* The processor specific details of running the operating system
* will be handled here. Such things as setting up interrupt
* service routines and starting the clock are some of the things
* that are different for each processor and hardware platform.
*/
up_initialize();
#ifdef CONFIG_NET
/* Complete initialization the networking system now that interrupts
* and timers have been configured by up_initialize().
*/
net_initialize();
#endif
#ifdef CONFIG_MM_SHM
/* Initialize shared memory support */
shm_initialize();
#endif
/* Initialize the C libraries. This is done last because the libraries
* may depend on the above.
*/
lib_initialize();
/* IDLE Group Initialization **********************************************/
#ifdef HAVE_TASK_GROUP
/* Allocate the IDLE group */
DEBUGVERIFY(group_allocate(&g_idletcb, g_idletcb.cmn.flags));
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
/* Create stdout, stderr, stdin on the IDLE task. These will be
* inherited by all of the threads created by the IDLE task.
*/
DEBUGVERIFY(group_setupidlefiles(&g_idletcb));
#endif
#ifdef HAVE_TASK_GROUP
/* Complete initialization of the IDLE group. Suppress retention
* of child status in the IDLE group.
*/
DEBUGVERIFY(group_initialize(&g_idletcb));
g_idletcb.cmn.group->tg_flags = GROUP_FLAG_NOCLDWAIT;
#endif
/* Bring Up the System ****************************************************/
/* Create initial tasks and bring-up the system */
DEBUGVERIFY(os_bringup());
/* The IDLE Loop **********************************************************/
/* When control is return to this point, the system is idle. */
sdbg("Beginning Idle Loop\n");
for (;;)
{
/* Perform garbage collection (if it is not being done by the worker
* thread). This cleans-up memory de-allocations that were queued
* because they could not be freed in that execution context (for
* example, if the memory was freed from an interrupt handler).
*/
#ifndef CONFIG_SCHED_WORKQUEUE
/* We must have exclusive access to the memory manager to do this
* BUT the idle task cannot wait on a semaphore. So we only do
* the cleanup now if we can get the semaphore -- this should be
* possible because if the IDLE thread is running, no other task is!
*
* WARNING: This logic could have undesirable side-effects if priority
* inheritance is enabled. Imaginee the possible issues if the
* priority of the IDLE thread were to get boosted! Moral: If you
* use priority inheritance, then you should also enable the work
* queue so that is done in a safer context.
*/
if (kmm_trysemaphore() == 0)
{
sched_garbagecollection();
kmm_givesemaphore();
}
#endif
/* Perform any processor-specific idle state operations */
up_idle();
}
}