| 1 |
#include "plugin_manager.h" |
| 2 |
#include "aos.h" |
| 3 |
#include "_aos.h" |
| 4 |
|
| 5 |
/* internal methods */ |
| 6 |
|
| 7 |
int aos_is_initialized(){ |
| 8 |
return _is_initialized; |
| 9 |
} |
| 10 |
|
| 11 |
void aos_start_threading(){ |
| 12 |
_is_threading = 1; |
| 13 |
} |
| 14 |
|
| 15 |
aos_storage_t * aos_get_storage(){ |
| 16 |
pid_t tid; |
| 17 |
aos_storage_t * storage; |
| 18 |
|
| 19 |
if(!_is_threading){ |
| 20 |
printf("Accessed global storage\n"); |
| 21 |
return _global_storage; |
| 22 |
} |
| 23 |
|
| 24 |
tid = syscall(SYS_gettid); |
| 25 |
printf("Accessed storage in thread %i\n", tid); |
| 26 |
|
| 27 |
if(!(storage = pthread_getspecific(_aos_key))) { |
| 28 |
if((storage = calloc(1, sizeof(aos_storage_t)))){ |
| 29 |
if((storage->list_contexts = calloc(1, sizeof(aos_context_t)))){ |
| 30 |
pthread_setspecific(_aos_key, storage); |
| 31 |
printf("Created new TLS at %p\n", storage); |
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} |
| 33 |
} |
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} else { |
| 35 |
printf("Found existing TLS at %p\n", storage); |
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} |
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return storage; |
| 38 |
} |
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|
| 40 |
EES_RC aos_free_storage(aos_storage_t* storage){ |
| 41 |
aos_context_t *context = NULL, *next_context = NULL; |
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aos_attribute_t *attribute = NULL, *next_attribute = NULL; |
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int attribute_count = 0; |
| 44 |
|
| 45 |
if(!storage){ |
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return EES_FAILURE; |
| 47 |
} |
| 48 |
|
| 49 |
printf("Cleaning aos storage at %p\n", storage); |
| 50 |
if(storage == _global_storage){ |
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printf("This is the GLOBAL storage\n"); |
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} |
| 53 |
|
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context = storage->list_contexts; |
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|
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while(context){ |
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next_context = context->next; |
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printf("Checking context at %p\n", context); |
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attribute = context->list_attributes; |
| 60 |
while(attribute){ |
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next_attribute = attribute->next; |
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/* free here */ |
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printf("Checking attribute at %p\n", attribute); |
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if(attribute->needs_free){ |
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eef_log(LOG_DEBUG, "Freeing arg %i at %p\n",attribute_count, attribute); |
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free(attribute->data); |
| 67 |
free(attribute); |
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} else { |
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eef_log(LOG_DEBUG, "Not freeing arg %i at %p\n",attribute_count, attribute); |
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} |
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attribute = next_attribute; |
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attribute_count++; |
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} |
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/* free here */ |
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printf("Freeing context at %p\n", context); |
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free(context); |
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context = next_context; |
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} |
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free(storage); |
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return EES_SUCCESS; |
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} |
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|
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/* base functions */ |
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|
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aos_context_t * createContext(aos_context_class_t context_class){ |
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aos_context_t * context; |
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if((context = calloc(1, sizeof(aos_context_t)))){ |
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context->context_class = context_class; |
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context->list_attributes = NULL; |
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context->next = NULL; |
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} |
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return context; |
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} |
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|
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EES_RC addContext(aos_context_t* context){ |
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aos_storage_t* storage = aos_get_storage(); |
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printf("Adding context at %p to storage at %p\n", context, storage); |
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if(storage->last_context){ |
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storage->last_context->next = context; |
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} else { |
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storage->list_contexts = context; |
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} |
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storage->last_context = context; |
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return EES_SUCCESS; |
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} |
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|
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aos_context_t * getNextContext(aos_context_class_t context_class, aos_storage_t* storage){ |
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aos_context_t* current_context; |
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if(!storage){ |
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storage = aos_get_storage(); |
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} |
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if(storage->last_context != NULL){ |
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current_context = storage->last_context->next; |
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storage->last_context = current_context; |
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} else { |
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current_context = storage->list_contexts; |
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while(current_context){ |
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if((current_context->context_class == context_class) || (context_class == ANY) ){ |
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break; |
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} |
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current_context = current_context->next; |
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} |
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} |
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if(current_context){ |
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return current_context; |
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} else { |
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return getNextContext(context_class, _global_storage); |
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} |
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} |
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|
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void setContextObligation(aos_context_t* context, char * obligation){ |
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if(context->context_class == OBLIGATION){ |
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context->obligation_name = obligation; |
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} |
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} |
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|
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aos_attribute_t* createAttribute(void){ |
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aos_attribute_t* attribute = NULL; |
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if((attribute = calloc(1, sizeof(aos_attribute_t)))){ |
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attribute->next = NULL; |
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attribute->setting_plugin = get_running_plugin(); |
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} |
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return attribute; |
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} |
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|
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EES_RC addAttribute(aos_context_t * context, aos_attribute_t* attribute){ |
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printf("Adding attribute at %p to context at %p\n", attribute, context); |
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if(context->last_attribute){ |
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context->last_attribute->next = attribute; |
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} else { |
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context->list_attributes = attribute; |
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} |
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context->last_attribute = attribute; |
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return EES_SUCCESS; |
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} |
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|
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aos_attribute_t* getNextAttribute(aos_context_t* context){ |
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if(!context->last_attribute){ |
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context->last_attribute = context->list_attributes; |
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} else { |
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context->last_attribute = context->last_attribute->next; |
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} |
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return context->last_attribute; |
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} |
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|
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EES_RC destroyAttribute(aos_context_t* context, aos_attribute_t* attribute){ |
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aos_attribute_t *last_attribute = NULL, *current_attribute = NULL; |
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for(current_attribute = context->list_attributes; current_attribute != NULL; last_attribute = current_attribute, current_attribute = current_attribute->next){ |
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if(current_attribute == attribute){ |
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if(current_attribute->setting_plugin != get_running_plugin()){ |
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eef_log(LOG_ERR, "Argument %s is not owned by running plugin %s", current_attribute->id, get_running_plugin()->name); |
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return EES_FAILURE; |
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} |
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free(attribute->data); |
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free(attribute); |
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attribute = NULL; |
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if(last_attribute == NULL){ |
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context->list_attributes = current_attribute->next; |
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} else { |
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last_attribute->next = current_attribute->next; |
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} |
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break; |
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} |
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} |
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|
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if(current_attribute){ |
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free(current_attribute->data); |
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free(current_attribute); |
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current_attribute = NULL; |
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return EES_SUCCESS; |
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} |
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return EES_FAILURE; |
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} |
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|
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EES_RC setAttributeId(aos_attribute_t* attribute, char* id){ |
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attribute->id = id; |
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return EES_SUCCESS; |
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} |
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|
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EES_RC setAttributeIssuer(aos_attribute_t* attribute, char* issuer){ |
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attribute->issuer = issuer; |
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return EES_SUCCESS; |
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} |
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|
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EES_RC setAttributeValue(aos_attribute_t* attribute, void* value, size_t size){ |
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if(size == 0) { |
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attribute->data = value; |
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attribute->needs_free = 0; |
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} else { |
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attribute->data = calloc(1, size); |
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memcpy(attribute->data, value, size); |
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attribute->needs_free = 1; |
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} |
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return EES_SUCCESS; |
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} |
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|
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EES_RC setAttributeType(aos_attribute_t * attribute, char* type){ |
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attribute->type = type; |
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return EES_SUCCESS; |
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} |
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|
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char* getAttributeId(aos_attribute_t* attribute){ |
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return attribute->id; |
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} |
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|
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char* getAttributeIssuer(aos_attribute_t* attribute){ |
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return attribute->issuer; |
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} |
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|
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char* getAttributeValueAsString(aos_attribute_t* attribute){ |
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return (char*) attribute->data; |
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} |
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|
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int getAttributeValueAsInt(aos_attribute_t* attribute){ |
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return (int) (attribute->data); |
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} |
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|
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/* needs more work */ |
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EES_RC aos_delete_attribute_by_label(const char* label){ |
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aos_attribute_t * current_attr = NULL; |
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aos_attribute_t * previous_attr = NULL; |
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aos_storage_t * storage = aos_get_storage(); |
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|
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if(label == NULL){ |
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return EES_FAILURE; |
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} |
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|
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/*for(current_attr = storage->list_attributes; current_attr != NULL; previous_attr = current_attr, current_attr = current_attr->next){*/ |
| 249 |
/*if(strncmp(current_attr->id, label, strlen(label)) == 0){*/ |
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/*if(current_attr->setting_plugin != get_running_plugin()){*/ |
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/*eef_log(LOG_ERR, "Argument %s is not owned by running plugin %s", current_attr->id, get_running_plugin()->name);*/ |
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/*return EES_FAILURE;*/ |
| 253 |
/*}*/ |
| 254 |
/*if(previous_attr == NULL){*/ |
| 255 |
/**//* head node deleted. linking start of list to next node */ |
| 256 |
/*storage->list_arguments = current_attr->next;*/ |
| 257 |
/*} else {*/ |
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/**//* link previous to deletee's next */ |
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/*previous_attr->next = current_attr->next;*/ |
| 260 |
/*}*/ |
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/*break;*/ |
| 262 |
/*}*/ |
| 263 |
/*}*/ |
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|
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if(current_attr){ |
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/*eef_log(LOG_ERR, "Deleting attr:%s", label);*/ |
| 267 |
free(current_attr->data); |
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free(current_attr); |
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current_attr = NULL; |
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return EES_SUCCESS; |
| 271 |
} else { |
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return EES_FAILURE; |
| 273 |
} |
| 274 |
|
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} |
| 276 |
|
| 277 |
void* aos_get_value_by_label(const char *label){ |
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aos_attribute_t* attr = aos_get_attribute_by_label(label); |
| 279 |
if(attr == NULL){ |
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return NULL; |
| 281 |
} else { |
| 282 |
return attr->data; |
| 283 |
} |
| 284 |
} |
| 285 |
|
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aos_attribute_t * aos_get_attribute_by_label(const char *label){ |
| 287 |
unsigned int i; |
| 288 |
aos_context_t * context; |
| 289 |
aos_attribute_t * attribute; |
| 290 |
aos_storage_t * storage = aos_get_storage(); |
| 291 |
|
| 292 |
while((context = getNextContext(ANY, storage))){ |
| 293 |
while((attribute = getNextAttribute(context))){ |
| 294 |
if(strncmp(attribute->id, label, strlen(label)) ==0){ |
| 295 |
return attribute; |
| 296 |
} |
| 297 |
} |
| 298 |
} |
| 299 |
|
| 300 |
storage = _global_storage; |
| 301 |
|
| 302 |
while((context = getNextContext(ANY, storage))){ |
| 303 |
while((attribute = getNextAttribute(context))){ |
| 304 |
if(strncmp(attribute->id, label, strlen(label)) ==0){ |
| 305 |
return attribute; |
| 306 |
} |
| 307 |
} |
| 308 |
} |
| 309 |
|
| 310 |
return NULL; |
| 311 |
} |
| 312 |
|
| 313 |
/* initializer & terminator */ |
| 314 |
|
| 315 |
EES_RC AOS_Init (void){ |
| 316 |
_aos_key_once = PTHREAD_ONCE_INIT; |
| 317 |
_is_threading = 0; |
| 318 |
pthread_once(&_aos_key_once, aos_make_key); |
| 319 |
|
| 320 |
if((_global_storage = calloc(1, sizeof(aos_storage_t)))){ |
| 321 |
if(!(_global_storage->list_contexts = calloc(1, sizeof(aos_context_t)))){ |
| 322 |
return EES_FAILURE; |
| 323 |
} |
| 324 |
} else { |
| 325 |
return EES_FAILURE; |
| 326 |
} |
| 327 |
|
| 328 |
_is_initialized = 1; |
| 329 |
return EES_SUCCESS; |
| 330 |
} |
| 331 |
|
| 332 |
void aos_make_key(void){ |
| 333 |
pthread_key_create(&_aos_key, aos_free_key); |
| 334 |
} |
| 335 |
|
| 336 |
void aos_free_key(aos_storage_t* storage){ |
| 337 |
aos_free_storage(storage); |
| 338 |
} |
| 339 |
|
| 340 |
EES_RC AOS_Clean(void){ |
| 341 |
pid_t tid; |
| 342 |
tid = syscall(SYS_gettid); |
| 343 |
printf("Killing thread %i\n", tid); |
| 344 |
if(!_is_threading){ |
| 345 |
return EES_FAILURE; |
| 346 |
} |
| 347 |
/*aos_free_storage(aos_get_storage());*/ |
| 348 |
printf("Freed storage for thread %i\n", tid); |
| 349 |
return EES_SUCCESS; |
| 350 |
} |
| 351 |
|
| 352 |
EES_RC AOS_Term (void){ |
| 353 |
_is_threading = 0; |
| 354 |
aos_free_storage(_global_storage); |
| 355 |
pthread_setspecific(_aos_key, NULL); |
| 356 |
pthread_key_delete(_aos_key); |
| 357 |
_is_initialized = 0; |
| 358 |
return EES_SUCCESS; |
| 359 |
} |
| 360 |
|
| 361 |
EES_RC aos_dump_argslist (void) { |
| 362 |
unsigned int i; |
| 363 |
aos_context_t * context; |
| 364 |
aos_attribute_t* attribute; |
| 365 |
while((context = getNextContext(ANY, NULL))){ |
| 366 |
if(context->context_class == OBLIGATION){ |
| 367 |
printf("Context obligation: %s\n", context->obligation_name); |
| 368 |
} |
| 369 |
while((attribute = getNextAttribute(context))){ |
| 370 |
printf("Attribute: %s with value: %s\n", attribute->id, attribute->data); |
| 371 |
} |
| 372 |
} |
| 373 |
return EES_SUCCESS; |
| 374 |
} |
| 375 |
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