159 lines
3.1 KiB
C++
159 lines
3.1 KiB
C++
/*
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* This file Copyright (C) 2013-2014 Mnemosyne LLC
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*
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* It may be used under the GNU GPL versions 2 or 3
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* or any future license endorsed by Mnemosyne LLC.
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*
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*/
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#include "transmission.h"
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#include "error.h"
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#include "tr-assert.h"
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#include "utils.h"
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tr_error* tr_error_new_literal(int code, char const* message)
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{
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TR_ASSERT(message != NULL);
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tr_error* error = tr_new(tr_error, 1);
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error->code = code;
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error->message = tr_strdup(message);
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return error;
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}
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tr_error* tr_error_new_valist(int code, char const* message_format, va_list args)
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{
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TR_ASSERT(message_format != NULL);
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tr_error* error = tr_new(tr_error, 1);
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error->code = code;
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error->message = tr_strdup_vprintf(message_format, args);
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return error;
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}
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void tr_error_free(tr_error* error)
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{
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if (error == NULL)
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{
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return;
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}
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tr_free(error->message);
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tr_free(error);
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}
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void tr_error_set(tr_error** error, int code, char const* message_format, ...)
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{
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TR_ASSERT(message_format != NULL);
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if (error == NULL)
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{
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return;
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}
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TR_ASSERT(*error == NULL);
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va_list args;
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va_start(args, message_format);
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*error = tr_error_new_valist(code, message_format, args);
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va_end(args);
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}
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void tr_error_set_literal(tr_error** error, int code, char const* message)
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{
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TR_ASSERT(message != NULL);
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if (error == NULL)
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{
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return;
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}
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TR_ASSERT(*error == NULL);
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*error = tr_error_new_literal(code, message);
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}
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void tr_error_propagate(tr_error** new_error, tr_error** old_error)
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{
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TR_ASSERT(old_error != NULL);
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TR_ASSERT(*old_error != NULL);
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if (new_error != NULL)
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{
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TR_ASSERT(*new_error == NULL);
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*new_error = *old_error;
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*old_error = NULL;
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}
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else
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{
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tr_error_clear(old_error);
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}
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}
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void tr_error_clear(tr_error** error)
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{
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if (error == NULL)
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{
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return;
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}
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tr_error_free(*error);
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*error = NULL;
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}
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static void error_prefix_valist(tr_error** error, char const* prefix_format, va_list args) TR_GNUC_PRINTF(2, 0);
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static void error_prefix_valist(tr_error** error, char const* prefix_format, va_list args)
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{
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TR_ASSERT(error != NULL);
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TR_ASSERT(*error != NULL);
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TR_ASSERT(prefix_format != NULL);
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char* prefix = tr_strdup_vprintf(prefix_format, args);
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char* new_message = tr_strdup_printf("%s%s", prefix, (*error)->message);
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tr_free((*error)->message);
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(*error)->message = new_message;
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tr_free(prefix);
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}
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void tr_error_prefix(tr_error** error, char const* prefix_format, ...)
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{
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TR_ASSERT(prefix_format != NULL);
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if (error == NULL || *error == NULL)
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{
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return;
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}
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va_list args;
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va_start(args, prefix_format);
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error_prefix_valist(error, prefix_format, args);
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va_end(args);
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}
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void tr_error_propagate_prefixed(tr_error** new_error, tr_error** old_error, char const* prefix_format, ...)
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{
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TR_ASSERT(prefix_format != NULL);
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tr_error_propagate(new_error, old_error);
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if (new_error == NULL)
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{
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return;
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}
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va_list args;
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va_start(args, prefix_format);
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error_prefix_valist(new_error, prefix_format, args);
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va_end(args);
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}
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