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A comprehensive overhaul on the thread library.

Browse Source 
Lots of polishing, organizational changes, bug fixes, error handling etc. are
introduced.

COPY and NEW space thread creation are allowed but not thoroughly tested yet. It
seems they will work best if the lib supports utcb virtual range management
through the mapping.
This commit is contained in:
Bora Sahin
2009-11-12 22:29:41 +02:00
parent 0e6dec0fee
commit 743034a36b
11 changed files with 177 additions and 131 deletions
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21
conts/libl4thread/src/stack.c
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@@ -35,14 +35,14 @@ int stack_pool_init(unsigned long stack_start,
return 0;
}
void *get_stack_space(int nitems, int size)
void *get_stack_space(void)
{
return address_new(&stack_region_pool, nitems, size);
return address_new(&stack_region_pool, 1, lib_stack_size);
}
int delete_stack_space(void *stack_address, int nitems, int size)
int delete_stack_space(void *stack_address)
{
return address_del(&stack_region_pool, stack_address, nitems, size);
return address_del(&stack_region_pool, stack_address, 1, lib_stack_size);
}
int l4_set_stack_params(unsigned long stack_top,
@@ -50,11 +50,9 @@ int l4_set_stack_params(unsigned long stack_top,
unsigned long stack_size)
{
/* Ensure that arguments are valid. */
// FIXME: Check if lib_stack_size is convenient to use
// for ensuring stack space is setup.
if (IS_STACK_SETUP()) {
printf("libl4thread: You have already called: %s.\n",
__FUNCTION__);
__FUNCTION__);
return -EPERM;
}
if (!stack_top || !stack_bottom) {
@@ -87,12 +85,11 @@ int l4_set_stack_params(unsigned long stack_top,
/* Initialize internal variables. */
lib_stack_size = stack_size;
/* Init stack virtual address pool. */
stack_pool_init(stack_top, stack_bottom, stack_size);
/* Initialize stack virtual address pool. */
if (stack_pool_init(stack_top, stack_bottom, stack_size) < 0)
BUG();
/* Init the global mutex. */
//FIXME: Ensure that l4thread_create will not be called
// before the mutex is initialized.
/* Initialize the global mutex. */
l4_mutex_init(&lib_mutex);
return 0;