92 lines
2.0 KiB
C
92 lines
2.0 KiB
C
/*
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******************************************************************************
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Project: OWA EPANET
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Version: 2.2
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Module: util/errormanager.c
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Description: Provides a simple interface for managing errors
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Authors: see AUTHORS
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Copyright: see AUTHORS
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License: see LICENSE
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Last Updated: 04/02/2019
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******************************************************************************
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*/
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//#ifdef _WIN32
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//#define _CRTDBG_MAP_ALLOC
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//#include <stdlib.h>
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//#include <crtdbg.h>
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//#else
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#include <stdlib.h>
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//#endif
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#include <string.h>
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#include "errormanager.h"
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typedef struct error_s {
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int error_status;
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void (*p_msg_lookup)(int, char*, int);
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} error_handle_t;
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error_handle_t *create_error_manager(void (*p_error_message)(int, char*, int))
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//
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// Purpose: Constructs a new error handle.
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//
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{
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error_handle_t *error_handle;
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error_handle = (error_handle_t*)calloc(1, sizeof(error_handle_t));
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error_handle->p_msg_lookup = p_error_message;
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return error_handle;
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}
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void delete_error_manager(error_handle_t *error_handle)
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//
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// Purpose: Destroys the error handle.
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//
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{
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free(error_handle);
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}
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int set_error(error_handle_t *error_handle, int error_code)
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//
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// Purpose: Sets an error code in the handle.
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//
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{
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// If the error code is 0 no action is taken and 0 is returned.
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// This is a feature not a bug.
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if (error_code)
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error_handle->error_status = error_code;
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return error_code;
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}
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int check_error(error_handle_t *error_handle, char **error_message)
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//
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// Purpose: Returns the error message or NULL.
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//
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// Note: Caller must free memory allocated by check_error
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//
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{ int error_code = error_handle->error_status;
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char *temp = NULL;
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if (error_code != 0) {
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temp = (char*) calloc(ERR_MAXMSG + 1, sizeof(char));
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if (temp)
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error_handle->p_msg_lookup(error_code, temp, ERR_MAXMSG);
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}
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*error_message = temp;
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return error_code;
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}
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void clear_error(error_handle_t *error_handle)
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//
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// Purpose: Clears the error from the handle.
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//
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{
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error_handle->error_status = 0;
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}
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