/simpletypesystem/trunk : contents of src/baseobject.c at revision 64

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/*
Copyright (c) 2013-2014 Gustav Hartvigsson

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

#include "baseobject.h"
#include "Callback.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>


/* ---------------------------
 * Concrete method definitions
 * These are implemented towards the end of this file.
 * ---------------------------
 */

void
method_base_initialize (SObject * self);

void
method_base_deinitialize (SObject * self);

void
method_base_free (SObject * self);

int
method_base_ref (SObject * self);

int
method_base_unref (SObject * self);

int
method_base_get_refcount (SObject * self);

char *
method_base_to_string (SObject * self);

/* -----------------
 * Helper functions...
 * -----------------
 */
void
s_object_set_initialize_method (SObject * self, MethodFunc method) {
  SObjectClass * klass = s_object_get_class (self);
  klass->initialize = method;
}

void
s_object_set_free_method (SObject * self, MethodFunc method) {
  SObjectClass * klass = s_object_get_class (self);
  klass->free = method;
} 


void
s_object_set_ref_method (SObject * self,  MethodFuncInt method) {
  SObjectClass * klass = s_object_get_class (self);
  klass->ref = method;
}


void
s_object_set_unref_method (SObject * self,  MethodFuncInt method) {
  SObjectClass * klass = s_object_get_class (self);
  klass->unref = method;
}


void
s_object_set_get_refcount_method (SObject * self,  MethodFuncInt method) {
  SObjectClass * klass = s_object_get_class (self);
  klass->get_refcount = method;
}


void
s_object_set_to_string_method (SObject * self, ToStringFunc method) {
  SObjectClass * klass = s_object_get_class (self);
  klass->to_string = method;
}

void
s_object_set_deinitialize_method (SObject * self,  MethodFunc method) {
  SObjectClass * klass = s_object_get_class (self);
  klass->deinitialize = method;
}

void
s_object_initialize (SObject * self, const char * name) {
  self->name = s_string_new (name);
  
  self->refcount = 1;
  
  s_object_set_deinitialize_method (self,method_base_deinitialize);
  s_object_set_initialize_method (self, method_base_initialize);
  s_object_set_free_method (self, method_base_free);
  s_object_set_ref_method (self, method_base_ref);
  s_object_set_unref_method (self, method_base_unref);
  s_object_set_get_refcount_method (self, method_base_get_refcount);
  s_object_set_to_string_method (self, method_base_to_string);
}

SObject *
s_object_new () {
  s_warn_print ("s_object_new () should never be used in production code");
  
  SObject * self = malloc (sizeof (SObject));
  //allocate the class definition of the object.
  self->base_class = malloc (sizeof(SObjectClass));
  //initialize it.
  s_object_initialize (self, "SObject");
  return self;
}

void
s_object_free (SObject * self) {
  free (self->name);
  SObjectClass * klass = s_object_get_class (self);
  klass->free (self);
}

SObjectClass *
s_object_get_class (SObject * self) {
  return self->base_class;
}

void
s_object_set_class (SObject * self, SObjectClass * klass) {
  self->base_class = klass;
}

int
s_object_unref (SObject * self) {
  unsigned int ret = self->base_class->unref (self);
  return ret;
}

int
s_object_ref (SObject * self) {
  unsigned int ret = self->base_class->ref (self);
  return ret;
}

/**
 * This function returns the current reference count without chaning it.
 */
int
s_object_get_refcount (SObject * self) {
  unsigned int ret = self->base_class->get_refcount (self);
  return ret;
}

char *
s_object_to_string (SObject * self) {
  return self->base_class->to_string (self);
}

/* -----------------
 * Contrete methods.
 * -----------------
 */


void
method_base_deinitialize (SObject * self) { }

void
method_base_initialize (SObject * self) { }

void
method_base_free (SObject * self) {
  free (self->base_class);
  free (self);
}

int
method_base_ref (SObject * self) {
  self->refcount = self->refcount + 1;
  return self->refcount;
}

int
method_base_unref (SObject * self) {
  self->refcount = self->refcount - 1;
  if (self->refcount == 0) {
    s_object_free (self);
    return 0;
  }
  return self->refcount;
}

int
method_base_get_refcount (SObject * self) {
  return self->refcount;
}

char *
method_base_to_string (SObject * self) {
  char * ret_string = s_string_new_fmt ("References: %d", self->base_class->get_refcount(self));
  return ret_string;
}



1 by Gustav Hartvigsson Initial Code.	1	/*
5.2.7 by Gustav Hartvigsson * Switched licence to a more permisive one.	2	Copyright (c) 2013-2014 Gustav Hartvigsson
	3
	4	Permission is hereby granted, free of charge, to any person obtaining a copy
	5	of this software and associated documentation files (the "Software"), to deal
	6	in the Software without restriction, including without limitation the rights
	7	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	8	copies of the Software, and to permit persons to whom the Software is
	9	furnished to do so, subject to the following conditions:
	10
	11	The above copyright notice and this permission notice shall be included in
	12	all copies or substantial portions of the Software.
	13
	14	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	17	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	18	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	19	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	20	THE SOFTWARE.
1 by Gustav Hartvigsson Initial Code.	21	*/
	22
	23	#include "baseobject.h"
62 by Gustav Hartvigsson * General documentation clean up.	24	#include "Callback.h"
2 by Gustav Hartvigsson Made the code compile.	25	#include <stdlib.h>
3 by Gustav Hartvigsson Fixed a few things...	26	#include <string.h>
	27	#include <stdio.h>
	28
1 by Gustav Hartvigsson Initial Code.	29
	30	/* ---------------------------
	31	* Concrete method definitions
	32	* These are implemented towards the end of this file.
	33	* ---------------------------
	34	*/
	35
61 by Gustav Hartvigsson * Made the code more easy to read.	36	void
	37	method_base_initialize (SObject * self);
	38
	39	void
	40	method_base_deinitialize (SObject * self);
	41
	42	void
	43	method_base_free (SObject * self);
	44
	45	int
	46	method_base_ref (SObject * self);
	47
	48	int
	49	method_base_unref (SObject * self);
	50
	51	int
	52	method_base_get_refcount (SObject * self);
	53
	54	char *
	55	method_base_to_string (SObject * self);
1 by Gustav Hartvigsson Initial Code.	56
	57	/* -----------------
	58	* Helper functions...
	59	* -----------------
	60	*/
61 by Gustav Hartvigsson * Made the code more easy to read.	61	void
61 by Gustav Hartvigsson * Made the code more easy to read.	62	s_object_set_initialize_method (SObject * self, MethodFunc method) {
5.2.9 by Gustav Hartvigsson * Added license to files	63	SObjectClass * klass = s_object_get_class (self);
22 by Gustav Hartvigsson * Made code compile	64	klass->initialize = method;
1 by Gustav Hartvigsson Initial Code.	65	}
5.2.7 by Gustav Hartvigsson * Switched licence to a more permisive one.	66
61 by Gustav Hartvigsson * Made the code more easy to read.	67	void
61 by Gustav Hartvigsson * Made the code more easy to read.	68	s_object_set_free_method (SObject * self, MethodFunc method) {
5.2.9 by Gustav Hartvigsson * Added license to files	69	SObjectClass * klass = s_object_get_class (self);
5.2.9 by Gustav Hartvigsson * Added license to files	70	klass->free = method;
1 by Gustav Hartvigsson Initial Code.	71	}
1 by Gustav Hartvigsson Initial Code.	72
5.2.9 by Gustav Hartvigsson * Added license to files	73
61 by Gustav Hartvigsson * Made the code more easy to read.	74	void
61 by Gustav Hartvigsson * Made the code more easy to read.	75	s_object_set_ref_method (SObject * self, MethodFuncInt method) {
5.2.9 by Gustav Hartvigsson * Added license to files	76	SObjectClass * klass = s_object_get_class (self);
1 by Gustav Hartvigsson Initial Code.	77	klass->ref = method;
	78	}
	79
5.2.9 by Gustav Hartvigsson * Added license to files	80
61 by Gustav Hartvigsson * Made the code more easy to read.	81	void
61 by Gustav Hartvigsson * Made the code more easy to read.	82	s_object_set_unref_method (SObject * self, MethodFuncInt method) {
5.2.9 by Gustav Hartvigsson * Added license to files	83	SObjectClass * klass = s_object_get_class (self);
1 by Gustav Hartvigsson Initial Code.	84	klass->unref = method;
	85	}
	86
5.2.9 by Gustav Hartvigsson * Added license to files	87
61 by Gustav Hartvigsson * Made the code more easy to read.	88	void
61 by Gustav Hartvigsson * Made the code more easy to read.	89	s_object_set_get_refcount_method (SObject * self, MethodFuncInt method) {
5.2.9 by Gustav Hartvigsson * Added license to files	90	SObjectClass * klass = s_object_get_class (self);
4 by Gustav Hartvigsson Fixed a few problems.	91	klass->get_refcount = method;
	92	}
	93
5.2.9 by Gustav Hartvigsson * Added license to files	94
61 by Gustav Hartvigsson * Made the code more easy to read.	95	void
61 by Gustav Hartvigsson * Made the code more easy to read.	96	s_object_set_to_string_method (SObject * self, ToStringFunc method) {
5.2.9 by Gustav Hartvigsson * Added license to files	97	SObjectClass * klass = s_object_get_class (self);
1 by Gustav Hartvigsson Initial Code.	98	klass->to_string = method;
	99	}
	100
61 by Gustav Hartvigsson * Made the code more easy to read.	101	void
61 by Gustav Hartvigsson * Made the code more easy to read.	102	s_object_set_deinitialize_method (SObject * self, MethodFunc method) {
32 by Gustav Hartvigsson * Added some compile options to the root CMakeLists.txt	103	SObjectClass * klass = s_object_get_class (self);
	104	klass->deinitialize = method;
	105	}
1 by Gustav Hartvigsson Initial Code.	106
61 by Gustav Hartvigsson * Made the code more easy to read.	107	void
61 by Gustav Hartvigsson * Made the code more easy to read.	108	s_object_initialize (SObject * self, const char * name) {
48 by Gustav Hartvigsson * Finnished SLinkedList.	109	self->name = s_string_new (name);
48 by Gustav Hartvigsson * Finnished SLinkedList.	110
1 by Gustav Hartvigsson Initial Code.	111	self->refcount = 1;
48 by Gustav Hartvigsson * Finnished SLinkedList.	112
22 by Gustav Hartvigsson * Made code compile	113	s_object_set_deinitialize_method (self,method_base_deinitialize);
	114	s_object_set_initialize_method (self, method_base_initialize);
	115	s_object_set_free_method (self, method_base_free);
5.2.9 by Gustav Hartvigsson * Added license to files	116	s_object_set_ref_method (self, method_base_ref);
	117	s_object_set_unref_method (self, method_base_unref);
	118	s_object_set_get_refcount_method (self, method_base_get_refcount);
	119	s_object_set_to_string_method (self, method_base_to_string);
1 by Gustav Hartvigsson Initial Code.	120	}
1 by Gustav Hartvigsson Initial Code.	121
61 by Gustav Hartvigsson * Made the code more easy to read.	122	SObject *
61 by Gustav Hartvigsson * Made the code more easy to read.	123	s_object_new () {
32 by Gustav Hartvigsson * Added some compile options to the root CMakeLists.txt	124	s_warn_print ("s_object_new () should never be used in production code");
22 by Gustav Hartvigsson * Made code compile	125
5.2.9 by Gustav Hartvigsson * Added license to files	126	SObject * self = malloc (sizeof (SObject));
1 by Gustav Hartvigsson Initial Code.	127	//allocate the class definition of the object.
5.2.9 by Gustav Hartvigsson * Added license to files	128	self->base_class = malloc (sizeof(SObjectClass));
22 by Gustav Hartvigsson * Made code compile	129	//initialize it.
48 by Gustav Hartvigsson * Finnished SLinkedList.	130	s_object_initialize (self, "SObject");
1 by Gustav Hartvigsson Initial Code.	131	return self;
	132	}
	133
61 by Gustav Hartvigsson * Made the code more easy to read.	134	void
61 by Gustav Hartvigsson * Made the code more easy to read.	135	s_object_free (SObject * self) {
48 by Gustav Hartvigsson * Finnished SLinkedList.	136	free (self->name);
5.2.9 by Gustav Hartvigsson * Added license to files	137	SObjectClass * klass = s_object_get_class (self);
5.2.9 by Gustav Hartvigsson * Added license to files	138	klass->free (self);
1 by Gustav Hartvigsson Initial Code.	139	}
1 by Gustav Hartvigsson Initial Code.	140
61 by Gustav Hartvigsson * Made the code more easy to read.	141	SObjectClass *
61 by Gustav Hartvigsson * Made the code more easy to read.	142	s_object_get_class (SObject * self) {
1 by Gustav Hartvigsson Initial Code.	143	return self->base_class;
	144	}
	145
61 by Gustav Hartvigsson * Made the code more easy to read.	146	void
61 by Gustav Hartvigsson * Made the code more easy to read.	147	s_object_set_class (SObject * self, SObjectClass * klass) {
1 by Gustav Hartvigsson Initial Code.	148	self->base_class = klass;
	149	}
	150
61 by Gustav Hartvigsson * Made the code more easy to read.	151	int
61 by Gustav Hartvigsson * Made the code more easy to read.	152	s_object_unref (SObject * self) {
4 by Gustav Hartvigsson Fixed a few problems.	153	unsigned int ret = self->base_class->unref (self);
4 by Gustav Hartvigsson Fixed a few problems.	154	return ret;
1 by Gustav Hartvigsson Initial Code.	155	}
1 by Gustav Hartvigsson Initial Code.	156
61 by Gustav Hartvigsson * Made the code more easy to read.	157	int
61 by Gustav Hartvigsson * Made the code more easy to read.	158	s_object_ref (SObject * self) {
4 by Gustav Hartvigsson Fixed a few problems.	159	unsigned int ret = self->base_class->ref (self);
4 by Gustav Hartvigsson Fixed a few problems.	160	return ret;
1 by Gustav Hartvigsson Initial Code.	161	}
	162
	163	/**
	164	* This function returns the current reference count without chaning it.
	165	*/
61 by Gustav Hartvigsson * Made the code more easy to read.	166	int
61 by Gustav Hartvigsson * Made the code more easy to read.	167	s_object_get_refcount (SObject * self) {
4 by Gustav Hartvigsson Fixed a few problems.	168	unsigned int ret = self->base_class->get_refcount (self);
4 by Gustav Hartvigsson Fixed a few problems.	169	return ret;
1 by Gustav Hartvigsson Initial Code.	170	}
1 by Gustav Hartvigsson Initial Code.	171
61 by Gustav Hartvigsson * Made the code more easy to read.	172	char *
61 by Gustav Hartvigsson * Made the code more easy to read.	173	s_object_to_string (SObject * self) {
39 by Gustav Hartvigsson * Added "check" target for testing.	174	return self->base_class->to_string (self);
1 by Gustav Hartvigsson Initial Code.	175	}
	176
	177	/* -----------------
	178	* Contrete methods.
	179	* -----------------
	180	*/
22 by Gustav Hartvigsson * Made code compile	181
22 by Gustav Hartvigsson * Made code compile	182
61 by Gustav Hartvigsson * Made the code more easy to read.	183	void
	184	method_base_deinitialize (SObject * self) { }
	185
	186	void
	187	method_base_initialize (SObject * self) { }
	188
	189	void
	190	method_base_free (SObject * self) {
32 by Gustav Hartvigsson * Added some compile options to the root CMakeLists.txt	191	free (self->base_class);
	192	free (self);
1 by Gustav Hartvigsson Initial Code.	193	}
1 by Gustav Hartvigsson Initial Code.	194
61 by Gustav Hartvigsson * Made the code more easy to read.	195	int
61 by Gustav Hartvigsson * Made the code more easy to read.	196	method_base_ref (SObject * self) {
1 by Gustav Hartvigsson Initial Code.	197	self->refcount = self->refcount + 1;
	198	return self->refcount;
	199	}
	200
61 by Gustav Hartvigsson * Made the code more easy to read.	201	int
61 by Gustav Hartvigsson * Made the code more easy to read.	202	method_base_unref (SObject * self) {
1 by Gustav Hartvigsson Initial Code.	203	self->refcount = self->refcount - 1;
4 by Gustav Hartvigsson Fixed a few problems.	204	if (self->refcount == 0) {
32 by Gustav Hartvigsson * Added some compile options to the root CMakeLists.txt	205	s_object_free (self);
1 by Gustav Hartvigsson Initial Code.	206	return 0;
	207	}
	208	return self->refcount;
	209	}
	210
61 by Gustav Hartvigsson * Made the code more easy to read.	211	int
61 by Gustav Hartvigsson * Made the code more easy to read.	212	method_base_get_refcount (SObject * self) {
1 by Gustav Hartvigsson Initial Code.	213	return self->refcount;
	214	}
	215
61 by Gustav Hartvigsson * Made the code more easy to read.	216	char *
61 by Gustav Hartvigsson * Made the code more easy to read.	217	method_base_to_string (SObject * self) {
39 by Gustav Hartvigsson * Added "check" target for testing.	218	char * ret_string = s_string_new_fmt ("References: %d", self->base_class->get_refcount(self));
1 by Gustav Hartvigsson Initial Code.	219	return ret_string;
	220	}
	221
	222