Diff: appconf.cpp

Revision:

0:d825f8dae2be

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/appconf.cpp	Mon Nov 22 12:23:23 2010 +0000
@@ -0,0 +1,87 @@
+#include "appconf.h"
+#include <ConfigFile.h>
+
+LocalFileSystem fs_local("local");
+
+/*
+ * Configuration File Example.
+ *
+ * Ch1=A
+ * Ch2=B
+ */
+
+#define CONFIG_FILENAME "/local/SETUP.CFG"
+
+#define KEY_CH1 "Ch1"
+#define KEY_CH2 "Ch2"
+#define VALUE_CHANNEL_A "A"
+#define VALUE_CHANNEL_B "B"
+#define VALUE_CHANNEL_C "C"
+#define VALUE_CHANNEL_D "D"
+
+/**
+ * Initialize a configuration.
+ *
+ * @param p A pointer to a configuration structure.
+ */
+void appconf_init(appconf_t *p) {
+    p->ch1 = ChoroQ::ChA;
+    p->ch2 = ChoroQ::ChB;
+}
+
+/**
+ * Get a channel from the key.
+ *
+ * @param cf A pointer to a config file object.
+ * @param p A pointer to a application config.
+ * @param key The key.
+ * @param ch A pointer to the channel.
+ *
+ * @return Return 0 if it succeed.
+ */
+static int getChannel(ConfigFile *cf, appconf_t *p, char *key, ChoroQ::Channel *ch) {
+    char value[64];
+    if (!cf->getValue(key, value, sizeof(value))) {
+        return -1;
+    }
+
+    if (strcmp(value, VALUE_CHANNEL_A) == 0) {
+        *ch = ChoroQ::ChA;
+        return 0;
+    } else if (strcmp(value, VALUE_CHANNEL_B) == 0) {
+        *ch = ChoroQ::ChB;
+        return 0;
+    } else if (strcmp(value, VALUE_CHANNEL_C) == 0) {
+        *ch = ChoroQ::ChC;
+        return 0;
+    } else if (strcmp(value, VALUE_CHANNEL_D) == 0) {
+        *ch = ChoroQ::ChD;
+        return 0;
+    } else {
+        return -2;
+    }
+}
+
+/**
+ * Read a configuration.
+ *
+ * @param p A pointer to a configuration structure.
+ *
+ * @return Return 0 if read succeed.
+ */
+int appconf_read(appconf_t *p) {
+    ConfigFile cfg;
+
+    if (!cfg.read(CONFIG_FILENAME)) {
+        return -1;
+    }
+
+    if (getChannel(&cfg, p, KEY_CH1, &p->ch1) != 0) {
+        return -2;
+    }
+    if (getChannel(&cfg, p, KEY_CH2, &p->ch2) != 0) {
+        return -3;
+    }
+
+    return 0;
+}