#if !defined (USE_NATIVE_ALLOCATE_ZEROED) /******************************************************************************* * * FUNCTION: acpi_os_allocate_zeroed * * PARAMETERS: size - Size of the allocation * * RETURN: Address of the allocated memory on success, NULL on failure. * * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory. * This is the default implementation. Can be overridden via the * USE_NATIVE_ALLOCATE_ZEROED flag. *
******************************************************************************/ void *acpi_os_allocate_zeroed(acpi_size size)
{ void *allocation;
ACPI_FUNCTION_ENTRY();
allocation = acpi_os_allocate(size); if (allocation) {
/* Clear the memory block */
memset(allocation, 0, size);
}
return (allocation);
}
#endif/* !USE_NATIVE_ALLOCATE_ZEROED */
/******************************************************************************* * * FUNCTION: acpi_ut_create_caches * * PARAMETERS: None * * RETURN: Status * * DESCRIPTION: Create all local caches *
******************************************************************************/
status =
acpi_os_create_cache("Acpi-Namespace", sizeof(struct acpi_namespace_node),
ACPI_MAX_NAMESPACE_CACHE_DEPTH,
&acpi_gbl_namespace_cache); if (ACPI_FAILURE(status)) { return (status);
}
status =
acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state),
ACPI_MAX_STATE_CACHE_DEPTH,
&acpi_gbl_state_cache); if (ACPI_FAILURE(status)) { return (status);
}
status =
acpi_os_create_cache("Acpi-Parse", sizeof(struct acpi_parse_obj_common),
ACPI_MAX_PARSE_CACHE_DEPTH,
&acpi_gbl_ps_node_cache); if (ACPI_FAILURE(status)) { return (status);
}
status =
acpi_os_create_cache("Acpi-ParseExt", sizeof(struct acpi_parse_obj_named),
ACPI_MAX_EXTPARSE_CACHE_DEPTH,
&acpi_gbl_ps_node_ext_cache); if (ACPI_FAILURE(status)) { return (status);
}
status =
acpi_os_create_cache("Acpi-Operand", sizeof(union acpi_operand_object),
ACPI_MAX_OBJECT_CACHE_DEPTH,
&acpi_gbl_operand_cache); if (ACPI_FAILURE(status)) { return (status);
} #ifdef ACPI_ASL_COMPILER /* * For use with the ASL-/ASL+ option. This cache keeps track of regular * 0xA9 0x01 comments.
*/
status =
acpi_os_create_cache("Acpi-Comment", sizeof(struct acpi_comment_node),
ACPI_MAX_COMMENT_CACHE_DEPTH,
&acpi_gbl_reg_comment_cache); if (ACPI_FAILURE(status)) { return (status);
}
/* * This cache keeps track of the starting addresses of where the comments * lie. This helps prevent duplication of comments.
*/
status =
acpi_os_create_cache("Acpi-Comment-Addr", sizeof(struct acpi_comment_addr_node),
ACPI_MAX_COMMENT_CACHE_DEPTH,
&acpi_gbl_comment_addr_cache); if (ACPI_FAILURE(status)) { return (status);
}
/* * This cache will be used for nodes that represent files.
*/
status =
acpi_os_create_cache("Acpi-File", sizeof(struct acpi_file_node),
ACPI_MAX_COMMENT_CACHE_DEPTH,
&acpi_gbl_file_cache); if (ACPI_FAILURE(status)) { return (status);
} #endif
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
/* Memory allocation lists */
status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list); if (ACPI_FAILURE(status)) { return (status);
}
status =
acpi_ut_create_list("Acpi-Namespace", sizeof(struct acpi_namespace_node),
&acpi_gbl_ns_node_list); if (ACPI_FAILURE(status)) { return (status);
} #endif
return (AE_OK);
}
/******************************************************************************* * * FUNCTION: acpi_ut_delete_caches * * PARAMETERS: None * * RETURN: Status * * DESCRIPTION: Purge and delete all local caches *
******************************************************************************/
/* Length is valid, the buffer pointer must be also */
if (!buffer->pointer) { return (AE_BAD_PARAMETER);
}
return (AE_OK);
}
/******************************************************************************* * * FUNCTION: acpi_ut_initialize_buffer * * PARAMETERS: buffer - Buffer to be validated * required_length - Length needed * * RETURN: Status * * DESCRIPTION: Validate that the buffer is of the required length or * allocate a new buffer. Returned buffer is always zeroed. *
******************************************************************************/
if (!buffer || !required_length) { return (AE_BAD_PARAMETER);
}
/* * Buffer->Length is used as both an input and output parameter. Get the * input actual length and set the output required buffer length.
*/
input_buffer_length = buffer->length;
buffer->length = required_length;
/* * The input buffer length contains the actual buffer length, or the type * of buffer to be allocated by this routine.
*/ switch (input_buffer_length) { case ACPI_NO_BUFFER:
/* Return the exception (and the required buffer length) */
return (AE_BUFFER_OVERFLOW);
case ACPI_ALLOCATE_BUFFER: /* * Allocate a new buffer. We directectly call acpi_os_allocate here to * purposefully bypass the (optionally enabled) internal allocation * tracking mechanism since we only want to track internal * allocations. Note: The caller should use acpi_os_free to free this * buffer created via ACPI_ALLOCATE_BUFFER.
*/
buffer->pointer = acpi_os_allocate(required_length); break;
case ACPI_ALLOCATE_LOCAL_BUFFER:
/* Allocate a new buffer with local interface to allow tracking */
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.