ConfigFile - Changed general file descriptors to specific for …

Engravity-CDU » Code » ConfigFile

Engravity-CDU / ConfigFile

Changed general file descriptors to specific for CDU

Dependents: CDUFinal CDU_Mbed_36

Fork of ConfigFile by Shinichiro Nakamura

ConfigFile.cpp@0:6b4ba48753b9, 2010-09-12 (annotated)

Committer:: shintamainjp
Date:: Sun Sep 12 07:11:54 2010 +0000
Revision:: 0:6b4ba48753b9
Child:: 1:f02e081afe42

Who changed what in which revision?

User	Revision	Line number	New contents of line
shintamainjp	0:6b4ba48753b9	1	#include "ConfigFile.h"
shintamainjp	0:6b4ba48753b9	2
shintamainjp	0:6b4ba48753b9	3	ConfigFile::ConfigFile() {
shintamainjp	0:6b4ba48753b9	4	/*
shintamainjp	0:6b4ba48753b9	5	* Allocation for a config_t list.
shintamainjp	0:6b4ba48753b9	6	*/
shintamainjp	0:6b4ba48753b9	7	configlist = (config_t *)malloc(sizeof(config_t ) * MAXCONFIG);
shintamainjp	0:6b4ba48753b9	8	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	9	configlist[i] = NULL;
shintamainjp	0:6b4ba48753b9	10	}
shintamainjp	0:6b4ba48753b9	11	}
shintamainjp	0:6b4ba48753b9	12
shintamainjp	0:6b4ba48753b9	13	ConfigFile::~ConfigFile() {
shintamainjp	0:6b4ba48753b9	14	/*
shintamainjp	0:6b4ba48753b9	15	* Remove all storage and the contents.
shintamainjp	0:6b4ba48753b9	16	*/
shintamainjp	0:6b4ba48753b9	17	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	18	config_t *cfg = configlist[i];
shintamainjp	0:6b4ba48753b9	19	if (cfg != NULL) {
shintamainjp	0:6b4ba48753b9	20	free(cfg->key);
shintamainjp	0:6b4ba48753b9	21	free(cfg->value);
shintamainjp	0:6b4ba48753b9	22	free(cfg);
shintamainjp	0:6b4ba48753b9	23	}
shintamainjp	0:6b4ba48753b9	24	configlist[i] = NULL;
shintamainjp	0:6b4ba48753b9	25	}
shintamainjp	0:6b4ba48753b9	26
shintamainjp	0:6b4ba48753b9	27	/*
shintamainjp	0:6b4ba48753b9	28	* Remove cnofig_t list.
shintamainjp	0:6b4ba48753b9	29	*/
shintamainjp	0:6b4ba48753b9	30	free(configlist);
shintamainjp	0:6b4ba48753b9	31	configlist = NULL;
shintamainjp	0:6b4ba48753b9	32	}
shintamainjp	0:6b4ba48753b9	33
shintamainjp	0:6b4ba48753b9	34	char ConfigFile::getValue(char key) {
shintamainjp	0:6b4ba48753b9	35	/*
shintamainjp	0:6b4ba48753b9	36	* Null check.
shintamainjp	0:6b4ba48753b9	37	*/
shintamainjp	0:6b4ba48753b9	38	if (key == NULL) {
shintamainjp	0:6b4ba48753b9	39	return NULL;
shintamainjp	0:6b4ba48753b9	40	}
shintamainjp	0:6b4ba48753b9	41
shintamainjp	0:6b4ba48753b9	42	/*
shintamainjp	0:6b4ba48753b9	43	* Search a config_t object from the key.
shintamainjp	0:6b4ba48753b9	44	*/
shintamainjp	0:6b4ba48753b9	45	config_t *p = search(key);
shintamainjp	0:6b4ba48753b9	46	if (p == NULL) {
shintamainjp	0:6b4ba48753b9	47	return NULL;
shintamainjp	0:6b4ba48753b9	48	}
shintamainjp	0:6b4ba48753b9	49
shintamainjp	0:6b4ba48753b9	50	/*
shintamainjp	0:6b4ba48753b9	51	* Return the value.
shintamainjp	0:6b4ba48753b9	52	*/
shintamainjp	0:6b4ba48753b9	53	return p->value;
shintamainjp	0:6b4ba48753b9	54	}
shintamainjp	0:6b4ba48753b9	55
shintamainjp	0:6b4ba48753b9	56	bool ConfigFile::setValue(char key, char value) {
shintamainjp	0:6b4ba48753b9	57	/*
shintamainjp	0:6b4ba48753b9	58	* Null check.
shintamainjp	0:6b4ba48753b9	59	*/
shintamainjp	0:6b4ba48753b9	60	if ((key == NULL) \|\| (value == NULL)) {
shintamainjp	0:6b4ba48753b9	61	return false;
shintamainjp	0:6b4ba48753b9	62	}
shintamainjp	0:6b4ba48753b9	63
shintamainjp	0:6b4ba48753b9	64	/*
shintamainjp	0:6b4ba48753b9	65	* Size check.
shintamainjp	0:6b4ba48753b9	66	*/
shintamainjp	0:6b4ba48753b9	67	if ((MAXLEN_KEY < strlen(key)) \|\| (MAXLEN_VALUE < strlen(value))) {
shintamainjp	0:6b4ba48753b9	68	return false;
shintamainjp	0:6b4ba48753b9	69	}
shintamainjp	0:6b4ba48753b9	70
shintamainjp	0:6b4ba48753b9	71	/*
shintamainjp	0:6b4ba48753b9	72	* Search a config_t object from the key.
shintamainjp	0:6b4ba48753b9	73	*/
shintamainjp	0:6b4ba48753b9	74	config_t *p = search(key);
shintamainjp	0:6b4ba48753b9	75	if (p == NULL) {
shintamainjp	0:6b4ba48753b9	76	/*
shintamainjp	0:6b4ba48753b9	77	* Allocation a memory for a new key.
shintamainjp	0:6b4ba48753b9	78	*/
shintamainjp	0:6b4ba48753b9	79	char k = (char )malloc(sizeof(char) * (strlen(key) + 1));
shintamainjp	0:6b4ba48753b9	80	if (k == NULL) {
shintamainjp	0:6b4ba48753b9	81	return false;
shintamainjp	0:6b4ba48753b9	82	}
shintamainjp	0:6b4ba48753b9	83	strcpy(k, key);
shintamainjp	0:6b4ba48753b9	84
shintamainjp	0:6b4ba48753b9	85	/*
shintamainjp	0:6b4ba48753b9	86	* Allocation a memory for a new value.
shintamainjp	0:6b4ba48753b9	87	*/
shintamainjp	0:6b4ba48753b9	88	char v = (char )malloc(sizeof(char) * (strlen(value) + 1));
shintamainjp	0:6b4ba48753b9	89	if (v == NULL) {
shintamainjp	0:6b4ba48753b9	90	free(k);
shintamainjp	0:6b4ba48753b9	91	return false;
shintamainjp	0:6b4ba48753b9	92	}
shintamainjp	0:6b4ba48753b9	93	strcpy(v, value);
shintamainjp	0:6b4ba48753b9	94
shintamainjp	0:6b4ba48753b9	95	/*
shintamainjp	0:6b4ba48753b9	96	* Allocation a memory for a new configuration.
shintamainjp	0:6b4ba48753b9	97	*/
shintamainjp	0:6b4ba48753b9	98	config_t cfg = (config_t )malloc(sizeof(config_t) * 1);
shintamainjp	0:6b4ba48753b9	99	if (cfg == NULL) {
shintamainjp	0:6b4ba48753b9	100	free(k);
shintamainjp	0:6b4ba48753b9	101	free(v);
shintamainjp	0:6b4ba48753b9	102	return false;
shintamainjp	0:6b4ba48753b9	103	}
shintamainjp	0:6b4ba48753b9	104	cfg->key = k;
shintamainjp	0:6b4ba48753b9	105	cfg->value = v;
shintamainjp	0:6b4ba48753b9	106
shintamainjp	0:6b4ba48753b9	107	/*
shintamainjp	0:6b4ba48753b9	108	* Add the new configuration.
shintamainjp	0:6b4ba48753b9	109	*/
shintamainjp	0:6b4ba48753b9	110	if (!add(cfg)) {
shintamainjp	0:6b4ba48753b9	111	free(k);
shintamainjp	0:6b4ba48753b9	112	free(v);
shintamainjp	0:6b4ba48753b9	113	free(cfg);
shintamainjp	0:6b4ba48753b9	114	return false;
shintamainjp	0:6b4ba48753b9	115	}
shintamainjp	0:6b4ba48753b9	116
shintamainjp	0:6b4ba48753b9	117	return true;
shintamainjp	0:6b4ba48753b9	118	} else {
shintamainjp	0:6b4ba48753b9	119	/*
shintamainjp	0:6b4ba48753b9	120	* The value is same.
shintamainjp	0:6b4ba48753b9	121	*/
shintamainjp	0:6b4ba48753b9	122	if (strcmp(value, p->value) == 0) {
shintamainjp	0:6b4ba48753b9	123	return true;
shintamainjp	0:6b4ba48753b9	124	}
shintamainjp	0:6b4ba48753b9	125
shintamainjp	0:6b4ba48753b9	126	/*
shintamainjp	0:6b4ba48753b9	127	* Free a memory for the value.
shintamainjp	0:6b4ba48753b9	128	*/
shintamainjp	0:6b4ba48753b9	129	free(p->value);
shintamainjp	0:6b4ba48753b9	130	p->value = NULL;
shintamainjp	0:6b4ba48753b9	131
shintamainjp	0:6b4ba48753b9	132	/*
shintamainjp	0:6b4ba48753b9	133	* Allocation memory for the new value.
shintamainjp	0:6b4ba48753b9	134	*/
shintamainjp	0:6b4ba48753b9	135	char v = (char )malloc(sizeof(char) * (strlen(value) + 1));
shintamainjp	0:6b4ba48753b9	136	if (v == NULL) {
shintamainjp	0:6b4ba48753b9	137	return false;
shintamainjp	0:6b4ba48753b9	138	}
shintamainjp	0:6b4ba48753b9	139
shintamainjp	0:6b4ba48753b9	140	/*
shintamainjp	0:6b4ba48753b9	141	* Store it.
shintamainjp	0:6b4ba48753b9	142	*/
shintamainjp	0:6b4ba48753b9	143	strcpy(v, value);
shintamainjp	0:6b4ba48753b9	144	p->value = v;
shintamainjp	0:6b4ba48753b9	145
shintamainjp	0:6b4ba48753b9	146	return true;
shintamainjp	0:6b4ba48753b9	147	}
shintamainjp	0:6b4ba48753b9	148	}
shintamainjp	0:6b4ba48753b9	149
shintamainjp	0:6b4ba48753b9	150	bool ConfigFile::remove(char *key) {
shintamainjp	0:6b4ba48753b9	151	if (key == NULL) {
shintamainjp	0:6b4ba48753b9	152	return false;
shintamainjp	0:6b4ba48753b9	153	}
shintamainjp	0:6b4ba48753b9	154	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	155	config_t *cfg = configlist[i];
shintamainjp	0:6b4ba48753b9	156	if (cfg != NULL) {
shintamainjp	0:6b4ba48753b9	157	if (strcmp(cfg->key, key) == 0) {
shintamainjp	0:6b4ba48753b9	158	free(cfg->key);
shintamainjp	0:6b4ba48753b9	159	free(cfg->value);
shintamainjp	0:6b4ba48753b9	160	free(cfg);
shintamainjp	0:6b4ba48753b9	161	configlist[i] = NULL;
shintamainjp	0:6b4ba48753b9	162	return true;
shintamainjp	0:6b4ba48753b9	163	}
shintamainjp	0:6b4ba48753b9	164	}
shintamainjp	0:6b4ba48753b9	165	}
shintamainjp	0:6b4ba48753b9	166	return false;
shintamainjp	0:6b4ba48753b9	167	}
shintamainjp	0:6b4ba48753b9	168
shintamainjp	0:6b4ba48753b9	169	bool ConfigFile::removeAll(void) {
shintamainjp	0:6b4ba48753b9	170	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	171	config_t *p = configlist[i];
shintamainjp	0:6b4ba48753b9	172	if (p != NULL) {
shintamainjp	0:6b4ba48753b9	173	free(p->key);
shintamainjp	0:6b4ba48753b9	174	free(p->value);
shintamainjp	0:6b4ba48753b9	175	}
shintamainjp	0:6b4ba48753b9	176	free(p);
shintamainjp	0:6b4ba48753b9	177	configlist[i] = NULL;
shintamainjp	0:6b4ba48753b9	178	}
shintamainjp	0:6b4ba48753b9	179	return true;
shintamainjp	0:6b4ba48753b9	180	}
shintamainjp	0:6b4ba48753b9	181
shintamainjp	0:6b4ba48753b9	182	bool ConfigFile::read(char *file) {
shintamainjp	0:6b4ba48753b9	183	/*
shintamainjp	0:6b4ba48753b9	184	* Open the target file.
shintamainjp	0:6b4ba48753b9	185	*/
shintamainjp	0:6b4ba48753b9	186	FILE *fp = fopen(file, "r");
shintamainjp	0:6b4ba48753b9	187	if (fp == NULL) {
shintamainjp	0:6b4ba48753b9	188	return false;
shintamainjp	0:6b4ba48753b9	189	}
shintamainjp	0:6b4ba48753b9	190
shintamainjp	0:6b4ba48753b9	191	/*
shintamainjp	0:6b4ba48753b9	192	* Remove all configuration.
shintamainjp	0:6b4ba48753b9	193	*/
shintamainjp	0:6b4ba48753b9	194	removeAll();
shintamainjp	0:6b4ba48753b9	195
shintamainjp	0:6b4ba48753b9	196	/*
shintamainjp	0:6b4ba48753b9	197	* Read from a file.
shintamainjp	0:6b4ba48753b9	198	*/
shintamainjp	0:6b4ba48753b9	199	char buf[MAXLEN_KEY + 8 + MAXLEN_VALUE];
shintamainjp	0:6b4ba48753b9	200	while (fgets(buf, sizeof(buf), fp) != NULL) {
shintamainjp	0:6b4ba48753b9	201	/*
shintamainjp	0:6b4ba48753b9	202	* Ignore a comment.
shintamainjp	0:6b4ba48753b9	203	*/
shintamainjp	0:6b4ba48753b9	204	if (buf[0] == '#') {
shintamainjp	0:6b4ba48753b9	205	continue;
shintamainjp	0:6b4ba48753b9	206	}
shintamainjp	0:6b4ba48753b9	207
shintamainjp	0:6b4ba48753b9	208	/*
shintamainjp	0:6b4ba48753b9	209	* Trim a return.
shintamainjp	0:6b4ba48753b9	210	*/
shintamainjp	0:6b4ba48753b9	211	const size_t len = strlen(buf);
shintamainjp	0:6b4ba48753b9	212	for (int i = 0; i < len; i++) {
shintamainjp	0:6b4ba48753b9	213	if ((buf[i] == '\r') \|\| (buf[i] == '\n')) {
shintamainjp	0:6b4ba48753b9	214	buf[i] = '\0';
shintamainjp	0:6b4ba48753b9	215	}
shintamainjp	0:6b4ba48753b9	216	}
shintamainjp	0:6b4ba48753b9	217
shintamainjp	0:6b4ba48753b9	218	/*
shintamainjp	0:6b4ba48753b9	219	* Separate key and value.
shintamainjp	0:6b4ba48753b9	220	*/
shintamainjp	0:6b4ba48753b9	221	char k[MAXLEN_KEY];
shintamainjp	0:6b4ba48753b9	222	char v[MAXLEN_VALUE];
shintamainjp	0:6b4ba48753b9	223	char *sp = strchr(buf, SEPARATOR);
shintamainjp	0:6b4ba48753b9	224	if (sp != NULL) {
shintamainjp	0:6b4ba48753b9	225	strcpy(v, sp + 1);
shintamainjp	0:6b4ba48753b9	226	*sp = '\0';
shintamainjp	0:6b4ba48753b9	227	strcpy(k, buf);
shintamainjp	0:6b4ba48753b9	228	setValue(k, v);
shintamainjp	0:6b4ba48753b9	229	}
shintamainjp	0:6b4ba48753b9	230	}
shintamainjp	0:6b4ba48753b9	231	fclose(fp);
shintamainjp	0:6b4ba48753b9	232	return true;
shintamainjp	0:6b4ba48753b9	233	}
shintamainjp	0:6b4ba48753b9	234
shintamainjp	0:6b4ba48753b9	235	bool ConfigFile::write(char *file) {
shintamainjp	0:6b4ba48753b9	236	FILE *fp = fopen(file, "w");
shintamainjp	0:6b4ba48753b9	237	if (fp == NULL) {
shintamainjp	0:6b4ba48753b9	238	return false;
shintamainjp	0:6b4ba48753b9	239	}
shintamainjp	0:6b4ba48753b9	240
shintamainjp	0:6b4ba48753b9	241	static const char *NEWLINE_UNIX = "\n";
shintamainjp	0:6b4ba48753b9	242	static const char *NEWLINE_DOS = "\r\n";
shintamainjp	0:6b4ba48753b9	243	static const char *NEWLINE_MAC = "\r";
shintamainjp	0:6b4ba48753b9	244	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	245	config_t *cfg = configlist[i];
shintamainjp	0:6b4ba48753b9	246	if (cfg != NULL) {
shintamainjp	0:6b4ba48753b9	247	fprintf(fp, "%s=%s%s", cfg->key, cfg->value, NEWLINE_UNIX);
shintamainjp	0:6b4ba48753b9	248	}
shintamainjp	0:6b4ba48753b9	249	}
shintamainjp	0:6b4ba48753b9	250	fclose(fp);
shintamainjp	0:6b4ba48753b9	251	return true;
shintamainjp	0:6b4ba48753b9	252	}
shintamainjp	0:6b4ba48753b9	253
shintamainjp	0:6b4ba48753b9	254	ConfigFile::config_t ConfigFile::search(char key) {
shintamainjp	0:6b4ba48753b9	255	if (key == NULL) {
shintamainjp	0:6b4ba48753b9	256	return NULL;
shintamainjp	0:6b4ba48753b9	257	}
shintamainjp	0:6b4ba48753b9	258	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	259	if (configlist[i] != NULL) {
shintamainjp	0:6b4ba48753b9	260	if (strcmp(configlist[i]->key, key) == 0) {
shintamainjp	0:6b4ba48753b9	261	return configlist[i];
shintamainjp	0:6b4ba48753b9	262	}
shintamainjp	0:6b4ba48753b9	263	}
shintamainjp	0:6b4ba48753b9	264	}
shintamainjp	0:6b4ba48753b9	265	return NULL;
shintamainjp	0:6b4ba48753b9	266	}
shintamainjp	0:6b4ba48753b9	267
shintamainjp	0:6b4ba48753b9	268	bool ConfigFile::add(config_t *cfg) {
shintamainjp	0:6b4ba48753b9	269	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	270	if (configlist[i] == NULL) {
shintamainjp	0:6b4ba48753b9	271	configlist[i] = cfg;
shintamainjp	0:6b4ba48753b9	272	return true;
shintamainjp	0:6b4ba48753b9	273	}
shintamainjp	0:6b4ba48753b9	274	}
shintamainjp	0:6b4ba48753b9	275	return false;
shintamainjp	0:6b4ba48753b9	276	}

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Type:	Library
Created:	01 Jul 2014
Imports:	2
Forks:	0
Commits:	8
Dependents:	2
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ConfigFile.cpp@0:6b4ba48753b9, 2010-09-12 (annotated)

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