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chore: revert sandbox alloc API

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Sean McBride 4 years ago
parent a9423b104c
commit 2ceede804a
4 changed files with 35 additions and 38 deletions
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5
runtime/include/sandbox.h
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@ -92,10 +92,7 @@ extern void worker_thread_wakeup_sandbox(struct sandbox *sandbox);
* Public API *
**************************/
int sandbox_allocate(struct sandbox **sandbox, struct sandbox_request *sandbox_request);
#define SANDBOX_ALLOCATE_OK 0
#define SANDBOX_ALLOCATE_ERR -1
struct sandbox *sandbox_allocate(struct sandbox_request *sandbox_request);
void sandbox_free(struct sandbox *sandbox);
void sandbox_main(struct sandbox *sandbox);
int sandbox_parse_http_request(struct sandbox *sandbox, size_t length);

5
runtime/src/local_runqueue_list.c
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@ -49,8 +49,9 @@ local_runqueue_list_get_next()
if (local_runqueue_is_empty()) {
if (global_request_scheduler_remove(&sandbox_request) != GLOBAL_REQUEST_SCHEDULER_REMOVE_OK) goto err;
struct sandbox *sandbox;
if (sandbox_allocate(&sandbox, sandbox_request) == SANDBOX_ALLOCATE_ERR) goto sandbox_allocate_err;
struct sandbox *sandbox = sandbox_allocate(sandbox_request);
if (!sandbox) goto sandbox_allocate_err;
sandbox->state = SANDBOX_RUNNABLE;
local_runqueue_add(sandbox);

9
runtime/src/local_runqueue_minheap.c
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@ -90,7 +90,8 @@ local_runqueue_minheap_get_next()
if (global_request_scheduler_remove(&sandbox_request) != GLOBAL_REQUEST_SCHEDULER_REMOVE_OK) goto err;
/* Try to allocate a sandbox, returning the request on failure */
if (sandbox_allocate(&sandbox, sandbox_request) == SANDBOX_ALLOCATE_ERR) goto sandbox_allocate_err;
sandbox = sandbox_allocate(sandbox_request);
if (!sandbox) goto sandbox_allocate_err;
sandbox->state = SANDBOX_RUNNABLE;
local_runqueue_minheap_add(sandbox);
@ -149,10 +150,10 @@ local_runqueue_minheap_preempt(ucontext_t *user_context)
debuglog("Thread %lu Preempted %lu for %lu\n", pthread_self(), local_deadline,
sandbox_request->absolute_deadline);
/* Allocate the request */
struct sandbox *next_sandbox;
/* If sandbox allocation fails, add the request back and exit*/
if (sandbox_allocate(&next_sandbox, sandbox_request) == -1) goto err_sandbox_allocate;
struct sandbox *next_sandbox = sandbox_allocate(sandbox_request);
if (!next_sandbox) goto err_sandbox_allocate;
/* Set as runnable and add it to the runqueue */
next_sandbox->state = SANDBOX_RUNNABLE;

46
runtime/src/sandbox.c
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@ -381,72 +381,70 @@ err_stack_allocation_failed:
}
/**
* Allocates a new sandbox from a sandbox request, freeing the sandbox request on success
* @param sandbox pointer to destination pointer to set to newly allocated sandbox
* Allocates a new sandbox from a sandbox request
* Frees the sandbox request on success
* @param sandbox_request request being allocated
* @returns 0 on success, -1 on error
* @returns sandbox * on success, NULL on error
*/
int
sandbox_allocate(struct sandbox **sandbox, struct sandbox_request *sandbox_request)
struct sandbox *
sandbox_allocate(struct sandbox_request *sandbox_request)
{
/* Assumption: Caller has disabled software interrupts */
assert(!software_interrupt_is_enabled());
/* Validate Arguments */
assert(sandbox != NULL);
assert(sandbox_request != NULL);
module_validate(sandbox_request->module);
struct sandbox *new_sandbox;
char * error_message = "";
int rc;
/* Allocate Sandbox control structures, buffers, and linear memory in a 4GB address space */
*sandbox = (struct sandbox *)sandbox_allocate_memory(sandbox_request->module);
if (!sandbox) {
new_sandbox = sandbox_allocate_memory(sandbox_request->module);
if (!new_sandbox) {
error_message = "failed to allocate sandbox heap and linear memory";
goto err_memory_allocation_failed;
}
/* Set state to initializing */
(*sandbox)->state = SANDBOX_INITIALIZING;
new_sandbox->state = SANDBOX_INITIALIZING;
/* Allocate the Stack */
if (sandbox_allocate_stack(*sandbox) == -1) {
if (sandbox_allocate_stack(new_sandbox) == -1) {
error_message = "failed to allocate sandbox heap and linear memory";
goto err_stack_allocation_failed;
}
/* Copy the socket descriptor, address, and arguments of the client invocation */
(*sandbox)->absolute_deadline = sandbox_request->absolute_deadline;
(*sandbox)->arguments = (void *)sandbox_request->arguments;
(*sandbox)->client_socket_descriptor = sandbox_request->socket_descriptor;
(*sandbox)->request_arrival_timestamp = sandbox_request->request_arrival_timestamp;
new_sandbox->absolute_deadline = sandbox_request->absolute_deadline;
new_sandbox->arguments = (void *)sandbox_request->arguments;
new_sandbox->client_socket_descriptor = sandbox_request->socket_descriptor;
new_sandbox->request_arrival_timestamp = sandbox_request->request_arrival_timestamp;
/* Initialize the sandbox's context, stack, and instruction pointer */
arch_context_init(&(*sandbox)->ctxt, (reg_t)current_sandbox_main,
(reg_t)((*sandbox)->stack_start + (*sandbox)->stack_size));
arch_context_init(&new_sandbox->ctxt, (reg_t)current_sandbox_main,
(reg_t)(new_sandbox->stack_start + new_sandbox->stack_size));
/* TODO: What does it mean if there isn't a socket_address? Shouldn't this be a hard requirement?
It seems that only the socket descriptor is used to send response */
const struct sockaddr *socket_address = sandbox_request->socket_address;
if (socket_address) memcpy(&(*sandbox)->client_address, socket_address, sizeof(struct sockaddr));
if (socket_address) memcpy(&new_sandbox->client_address, socket_address, sizeof(struct sockaddr));
/* Initialize file descriptors to -1 */
for (int i = 0; i < SANDBOX_MAX_IO_HANDLE_COUNT; i++) (*sandbox)->io_handles[i].file_descriptor = -1;
for (int i = 0; i < SANDBOX_MAX_IO_HANDLE_COUNT; i++) new_sandbox->io_handles[i].file_descriptor = -1;
/* Initialize Parsec control structures (used by Completion Queue) */
ps_list_init_d(*sandbox);
ps_list_init_d(new_sandbox);
free(sandbox_request);
rc = 0;
done:
return rc;
return new_sandbox;
err_stack_allocation_failed:
sandbox_free(*sandbox);
sandbox_free(new_sandbox);
err_memory_allocation_failed:
err:
perror(error_message);
rc = -1;
new_sandbox = NULL;
goto done;
}

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