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author | Konstantin Kowalski <kostyakow42@gmail.com> | 2013-08-09 15:44:22 +0000 |
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committer | Konstantin Kowalski <kostyakow42@gmail.com> | 2013-08-09 15:44:22 +0000 |
commit | 5f41c30d66f0902d5151663da67c7d6a9995c098 (patch) | |
tree | 65827312ee54f6fa5eb0b03ff0854656b491ea9b /testing | |
parent | 1033d897ca4a0636a549a87ae2dce6592c66fffd (diff) |
Moved long comments to wiki.
Diffstat (limited to 'testing')
-rw-r--r-- | testing/misc_tools.h | 81 |
1 files changed, 7 insertions, 74 deletions
diff --git a/testing/misc_tools.h b/testing/misc_tools.h index cc5abeda..550465f4 100644 --- a/testing/misc_tools.h +++ b/testing/misc_tools.h | |||
@@ -26,15 +26,9 @@ | |||
26 | 26 | ||
27 | unsigned char * hex_string_to_bin(char hex_string[]); | 27 | unsigned char * hex_string_to_bin(char hex_string[]); |
28 | 28 | ||
29 | /* WARNING(msg) takes a printf()-styled string and prints it | 29 | /*********************Debugging Macros******************** |
30 | * with some additional details. | 30 | * wiki.tox.im/index.php/Internal_functions_and_data_structures#Debugging |
31 | * ERROR(exit_status, msg) does the same thing as WARNING(), but | 31 | *********************************************************/ |
32 | * also exits the program with the given exit status. | ||
33 | * Examples: | ||
34 | * WARNING("<insert warning message here>"); | ||
35 | * int exit_status = 2; | ||
36 | * ERROR(exit_status, "exiting with status %i", exit_status); | ||
37 | */ | ||
38 | #ifdef DEBUG | 32 | #ifdef DEBUG |
39 | #include <assert.h> | 33 | #include <assert.h> |
40 | #include <stdio.h> | 34 | #include <stdio.h> |
@@ -69,76 +63,14 @@ unsigned char * hex_string_to_bin(char hex_string[]); | |||
69 | #endif // DEBUG | 63 | #endif // DEBUG |
70 | 64 | ||
71 | /************************Linked List*********************** | 65 | /************************Linked List*********************** |
72 | * This is a simple linked list implementation, very similar | 66 | * http://wiki.tox.im/index.php/Internal_functions_and_data_structures#Linked_List |
73 | * to Linux kernel's /include/linux/list.h (which we can't | ||
74 | * use because Tox is GPLv3 and Linux is GPLv2.) | ||
75 | * | ||
76 | * TODO: Make the lists easier to use with some sweat pre- | ||
77 | * processor syntactic sugar. | ||
78 | **********************************************************/ | 67 | **********************************************************/ |
79 | 68 | ||
80 | /* Example usage | ||
81 | |||
82 | This sample program makes a new struct which contains a | ||
83 | character and a tox_list_t. It then prompts a user for | ||
84 | input until he enters q or e. It then adds each character | ||
85 | to the list, and uses a special for loop to print them. | ||
86 | It then removes all the 'z' characters, and prints the list | ||
87 | again. | ||
88 | |||
89 | //Notice that the data to be put in the list *contains* tox_list_t; | ||
90 | //usually, this is the other way around! | ||
91 | typedef struct tox_string { | ||
92 | char c; | ||
93 | tox_list_t tox_lst; //Notice that tox_lst is *NOT* a pointer. | ||
94 | } tox_string_t; | ||
95 | |||
96 | int main() | ||
97 | { | ||
98 | tox_list_t head; | ||
99 | tox_list_new(&head); //initialize head | ||
100 | |||
101 | //input a new character, until user enters q or e | ||
102 | char c = '\0'; | ||
103 | while (c != 'q' && c != 'e') { | ||
104 | scanf("%c", &c); | ||
105 | tox_string_t* tmp = malloc(sizeof(tox_string_t)); | ||
106 | tmp->c = c; | ||
107 | tox_list_add(&head, &tmp->tox_lst); //add it to the list | ||
108 | } | ||
109 | |||
110 | TOX_LIST_FOR_EACH() takes a struct tox_list and a name for a temporary pointer to use in the loop. | ||
111 | |||
112 | TOX_LIST_GET_VALUE() uses magic to return an instance of a structure that contains tox_list_t. | ||
113 | You have to give it a temporary tox_string_t, name of tox_list_t member inside our structure (tox_lst), | ||
114 | and the type of structure to return. | ||
115 | |||
116 | TOX_LIST_FOR_EACH(head, tmp) | ||
117 | printf("%c", TOX_LIST_GET_VALUE(*tmp, tox_lst, tox_string_t).c); | ||
118 | |||
119 | TOX_LIST_FOR_EACH(head, tmp) { | ||
120 | if (TOX_LIST_GET_VALUE(*tmp, tox_lst, tox_string_t).c == 'z') { | ||
121 | //If you delete tmp, you have to quit the loop, or it will go on infinitly. | ||
122 | //This will be fixed later on. | ||
123 | tox_list_remove(tmp); | ||
124 | break; | ||
125 | } | ||
126 | } | ||
127 | |||
128 | printf("\n"); | ||
129 | TOX_LIST_FOR_EACH(head, tmp) | ||
130 | printf("%c", TOX_LIST_GET_VALUE(*tmp, tox_lst, tox_string_t).c); | ||
131 | |||
132 | |||
133 | return 0; | ||
134 | } | ||
135 | */ | ||
136 | |||
137 | #define MEMBER_OFFSET(var_name_in_parent, parent_type) \ | 69 | #define MEMBER_OFFSET(var_name_in_parent, parent_type) \ |
138 | (&(((parent_type*)0)->var_name_in_parent)) | 70 | (&(((parent_type*)0)->var_name_in_parent)) |
139 | 71 | ||
140 | #define GET_PARENT(var, var_name_in_parent, parent_type) \ | 72 | #define GET_PARENT(var, var_name_in_parent, parent_type) \ |
141 | (*((parent_type*)((uint64_t)(&(var)) - (uint64_t)(MEMBER_OFFSET(var_name_in_parent, parent_type))))) | 73 | ((parent_type*)((uint64_t)(&(var)) - (uint64_t)(MEMBER_OFFSET(var_name_in_parent, parent_type)))) |
142 | 74 | ||
143 | #define TOX_LIST_FOR_EACH(lst, tmp_name) \ | 75 | #define TOX_LIST_FOR_EACH(lst, tmp_name) \ |
144 | for (tox_list_t* tmp_name = lst.next; tmp_name != &lst; tmp_name = tmp_name->next) | 76 | for (tox_list_t* tmp_name = lst.next; tmp_name != &lst; tmp_name = tmp_name->next) |
@@ -177,6 +109,7 @@ static inline void tox_list_remove(tox_list_t* lst) { | |||
177 | * Array to store pointers which tracks it's own size. | 109 | * Array to store pointers which tracks it's own size. |
178 | * TODO: Figure out if it shold store values instead of | 110 | * TODO: Figure out if it shold store values instead of |
179 | * pointers? | 111 | * pointers? |
112 | * TODO: Add wiki info usage. | ||
180 | ************************************************************/ | 113 | ************************************************************/ |
181 | 114 | ||
182 | struct tox_array { | 115 | struct tox_array { |
@@ -184,7 +117,7 @@ struct tox_array { | |||
184 | uint32_t size, length; | 117 | uint32_t size, length; |
185 | }; | 118 | }; |
186 | 119 | ||
187 | static inline void tox_array_init(struct tox_array *arr) | 120 | static inline void tox_array_init(struct tox_array *arr) |
188 | { | 121 | { |
189 | arr->size = 1; | 122 | arr->size = 1; |
190 | arr->length = 0; | 123 | arr->length = 0; |