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fixed a few bugs

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1013 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper 2002-09-11 12:25:47 +00:00
parent ea736e689e
commit e6d02b3a8b
1 changed files with 23 additions and 22 deletions
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45
src/kernel/core/port.c
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@ -170,40 +170,42 @@ create_port(int32 queue_length, const char *name)
int state;
sem_id sem_r, sem_w;
port_id retval;
int name_len;
char *temp_name;
void *q;
struct port_msg *q;
team_id owner;
if (ports_active == false)
return B_BAD_PORT_ID;
// check & dup name
if (name) {
int name_len = strlen(name);
temp_name = (char *)kmalloc(min(name_len + 1, SYS_MAX_OS_NAME_LEN));
if(temp_name == NULL)
return ENOMEM;
strncpy(temp_name, name, SYS_MAX_OS_NAME_LEN-1);
temp_name[SYS_MAX_OS_NAME_LEN-1] = 0;
} else {
temp_name = (char *)kmalloc(sizeof("default_port_name")+1);
if(temp_name == NULL)
return ENOMEM;
strcpy(temp_name, "default_port_name");
}
// check queue length & alloc
// check queue length
if (queue_length < 1)
return EINVAL;
if (queue_length > MAX_QUEUE_LENGTH)
return EINVAL;
q = (void *)kmalloc( queue_length * sizeof(struct port_msg) );
// check & dup name
if (name == NULL)
name = "unnamed port";
name_len = strlen(name) + 1;
name_len = min(name_len, SYS_MAX_OS_NAME_LEN);
temp_name = (char *)kmalloc(name_len);
if (temp_name == NULL)
return ENOMEM;
strlcpy(temp_name, name, name_len);
// alloc queue
q = (struct port_msg *)kmalloc( queue_length * sizeof(struct port_msg) );
if (q == NULL) {
kfree(temp_name); // dealloc name, too
return ENOMEM;
}
// init cbuf list of the queue
for (i=0; i<queue_length; i++)
q[i].data_cbuf = 0;
// create sem_r with owner set to -1
sem_r = create_sem_etc(0, temp_name, -1);
if (sem_r < 0) {
@ -259,8 +261,6 @@ create_port(int32 queue_length, const char *name)
}
// not enough ports...
RELEASE_PORT_LIST_LOCK();
kfree(q);
kfree(temp_name);
retval = B_NO_MORE_PORTS;
dprintf("create_port(): B_NO_MORE_PORTS\n");
@ -276,7 +276,7 @@ out:
return retval;
}
status_t
status_t
close_port(port_id id)
{
int state;
@ -295,6 +295,7 @@ close_port(port_id id)
if (ports[slot].id != id) {
RELEASE_PORT_LOCK(ports[slot]);
restore_interrupts(state);
dprintf("close_port: invalid port_id %ld\n", id);
return B_BAD_PORT_ID;
}