void
m_unlink(void)
{
int rta;
char * sem;
sem = get_sem_name();
printf("A ejecutar: sem_unlink(%s);\n", sem);
rta = sem_unlink(sem);
if ( rta == -1 )
printf("Error al hacer close, errno = %d (%s)\n", errno, strerror(errno));
putchar('\n');
}
/**
* Set up the DPDK rings which will be used to pass packets, via
* pointers, between the multi-process server and client processes.
* Each client needs one RX queue.
*/
static int
init_shm_rings(void)
{
unsigned i;
unsigned socket_id;
const char * q_name;
#ifdef INTERRUPT_FIFO
const char * fifo_name;
#endif
#ifdef INTERRUPT_SEM
const char * sem_name;
sem_t *mutex;
#endif
#if defined(INTERRUPT_FIFO) || defined(INTERRUPT_SEM)
#ifdef DPDK_FLAG
const char *irq_flag_name;
const unsigned flagsize = 4;
#else
key_t key;
int shmid;
char *shm;
#endif
#endif
const unsigned ringsize = CLIENT_QUEUE_RINGSIZE;
clients = rte_malloc("client details",
sizeof(*clients) * num_clients, 0);
if (clients == NULL)
rte_exit(EXIT_FAILURE, "Cannot allocate memory for client program details\n");
for (i = 0; i < num_clients; i++) {
/* Create an RX queue for each client */
socket_id = rte_socket_id();
q_name = get_rx_queue_name(i);
clients[i].rx_q = rte_ring_create(q_name,
ringsize, socket_id,
RING_F_SP_ENQ | RING_F_SC_DEQ ); /* single prod, single cons */
//verify two functions
uint16_t ring_cur_entries = rte_ring_count(clients[i].rx_q);
uint16_t ring_free_entries = rte_ring_free_count(clients[i].rx_q);
fprintf(stderr, "ring_cur_entries=%d, ring_free_entries=%d\n", ring_cur_entries, ring_free_entries);
if (clients[i].rx_q == NULL)
rte_exit(EXIT_FAILURE, "Cannot create rx ring queue for client %u\n", i);
//add by wei, create FIFO pipe
#ifdef INTERRUPT_FIFO
umask(0);
fifo_name = get_fifo_name(i);
clients[i].fifo_name = fifo_name;
mknod(fifo_name, S_IFIFO|0666, 0);
clients[i].fifo_fp = fopen(fifo_name, "w");
if(clients[i].fifo_fp == NULL) {
fprintf(stderr, "can not create FIFO for client %d\n", i);
exit(1);
}
#endif
#ifdef INTERRUPT_SEM
sem_name = get_sem_name(i);
clients[i].sem_name = sem_name;
fprintf(stderr, "sem_name=%s for client %d\n", sem_name, i);
mutex = sem_open(sem_name, O_CREAT, 06666, 0);
if(mutex == SEM_FAILED) {
fprintf(stderr, "can not create semaphore for client %d\n", i);
sem_unlink(sem_name);
exit(1);
}
clients[i].mutex = mutex;
#endif
#if defined(INTERRUPT_FIFO) || defined(INTERRUPT_SEM)
#ifdef DPDK_FLAG
irq_flag_name = get_irq_flag_name(i);
clients[i].irq_flag = (int *)rte_ring_create(irq_flag_name,
flagsize, socket_id,
RING_F_SP_ENQ | RING_F_SC_DEQ ); /* single prod, single cons */
#else
key = get_rx_shmkey(i);
if ((shmid = shmget(key, SHMSZ, IPC_CREAT | 0666)) < 0) {
fprintf(stderr, "can not create the shared memory segment for client %d\n", i);
exit(1);
}
if ((shm = shmat(shmid, NULL, 0)) == (char *) -1) {
fprintf(stderr, "can not attach the shared segment to the server space for client %d\n", i);
exit(1);
}
clients[i].shm_server = (int *)shm;
#endif
#endif
}
return 0;
}
int
examine_document (xmlNode * node)
{
/*Examine the parse tree, add semantic attributes and set indicators.*/
xmlNode *child;
logMessage(LOG_INFO, "Begin examine_document: node->name=%s", node->name);
if (node == NULL)
return 0;
ud->stack[++ud->top] = set_sem_attr (node);
if (ud->format_for == utd)
{
unsigned char *name = get_sem_name (node);
if (name[0] != 0)
xmlNewProp (node, (xmlChar *)"semantics", (xmlChar *)name);
}
switch (ud->stack[ud->top])
{
case skip:
pop_sem_stack ();
return 1;
case configfile:
doConfigfile (node);
break;
case configstring:
do_configstring (node);
break;
case code:
ud->has_comp_code = 1;
break;
case contentsheader:
ud->has_contentsheader = 1;
break;
case math:
ud->has_math = 1;
break;
case chemistry:
ud->has_chem = 1;
break;
case graphic:
ud->has_graphics = 1;
break;
case music:
ud->has_music = 1;
break;
default:
break;
}
child = node->children;
while (child)
{
switch (child->type)
{
case XML_ELEMENT_NODE:
examine_document (child);
break;
case XML_TEXT_NODE:
examText (child);
break;
case XML_CDATA_SECTION_NODE:
examCdataa (child);
examine_document (child);
break;
default:
break;
}
child = child->next;
}
ud->top--;
return 1;
}