![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to dl.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / mqtt / src|
Return to dl.c CVS log | Up to [ELWIX - Embedded LightWeight unIX -] / mqtt / src |
1.2 misho 1: #include "global.h"
2: #include "rtlm.h"
3:
4:
5: static void *acc_rtlm, *pub_rtlm, *log_rtlm;
6:
7: struct tagCallbacks call;
8:
9:
10: /*
11: * mqttLog() Log message to syslog
12: *
13: * @fmt = format string
14: * @... = argument list
15: * return: none
16: */
17: void
18: mqttLog(const char *fmt, ...)
19: {
20: va_list lst;
21:
22: va_start(lst, fmt);
23: vsyslog(LOG_ERR, fmt, lst);
24: va_end(lst);
25: }
26:
27: void *
28: mqttLoadRTLM(sl_config *cfg, int modtype)
29: {
30: const char *str, *attr;
31: void *rtlm = NULL;
32: void *(*mqttOpenRTLM)(sl_config *);
33: void (*mqttCloseRTLM)(void *);
34:
35: if (!cfg)
36: return NULL;
37:
38: switch (modtype) {
39: case 0:
40: attr = "acc_file";
41: break;
42: case 1:
43: attr = "pub_file";
44: break;
45: default:
46: attr = "log_file";
47: break;
48: }
49:
50: str = (const char*) CFG(cfg_GetAttribute(cfg, CFG("mqttd"), CFG(attr)));
51: if (!str) {
52: mqttLog("Error:: RTL module not found\n");
53: return NULL;
54: }
55:
56: rtlm = dlopen(str, RTLD_LAZY);
57: if (!rtlm) {
58: mqttLog("Error:: RTL module %s not found %s\n", str, dlerror());
59: return NULL;
60: }
61:
62: mqttOpenRTLM = dlsym(rtlm, "mqtt_rtlm_open");
63: if (!mqttOpenRTLM) {
64: mqttLog("Error:: Can't found mqtt_db_open call\n");
65: dlclose(rtlm);
66: return NULL;
67: }
68: mqttCloseRTLM = dlsym(rtlm, "mqtt_rtlm_close");
69: if (!mqttCloseRTLM) {
70: mqttLog("Error:: Can't found mqtt_db_close call\n");
71: dlclose(rtlm);
72: return NULL;
73: }
74:
75: switch (modtype) {
76: case 0:
77: acc_rtlm = rtlm;
78: call.OpenACC = mqttOpenRTLM;
79: call.CloseACC = mqttCloseRTLM;
80: call.LoginACC = dlsym(rtlm, "mqtt_rtlm_login");
81: if (!call.LoginACC) {
82: mqttLog("Error:: incorrect module ...\n");
83: dlclose(rtlm);
84: return NULL;
85: }
86: break;
87: case 1:
88: pub_rtlm = rtlm;
89: call.OpenPUB = mqttOpenRTLM;
90: call.ClosePUB = mqttCloseRTLM;
91: call.InitSessPUB = dlsym(rtlm, "mqtt_rtlm_init_session");
92: call.FiniSessPUB = dlsym(rtlm, "mqtt_rtlm_fini_session");
93: call.ChkSessPUB = dlsym(rtlm, "mqtt_rtlm_chk_session");
1.2.2.1 ! misho 94: call.WritePUB_topic = dlsym(rtlm, "mqtt_rtlm_write_topic");
! 95: call.ReadPUB_topic = dlsym(rtlm, "mqtt_rtlm_read_topic");
! 96: call.DeletePUB_topic = dlsym(rtlm, "mqtt_rtlm_delete_topic");
! 97: call.WritePUB_subscribe = dlsym(rtlm, "mqtt_rtlm_write_subscribe");
! 98: call.ReadPUB_subscribe = dlsym(rtlm, "mqtt_rtlm_read_subscribe");
! 99: call.DeletePUB_subscribe = dlsym(rtlm, "mqtt_rtlm_delete_subscribe");
1.2 misho 100: if (!call.InitSessPUB || !call.FiniSessPUB || !call.ChkSessPUB ||
1.2.2.1 ! misho 101: !call.WritePUB_topic || !call.ReadPUB_topic ||
! 102: !call.DeletePUB_topic) {
1.2 misho 103: mqttLog("Error:: incorrect module ...\n");
104: dlclose(rtlm);
105: return NULL;
106: }
107: break;
108: default:
109: log_rtlm = rtlm;
110: call.OpenLOG = mqttOpenRTLM;
111: call.CloseLOG = mqttCloseRTLM;
112: call.LOG = dlsym(rtlm, "mqtt_rtlm_logger");
113: if (!call.LOG) {
114: mqttLog("Error:: incorrect module ...\n");
115: dlclose(rtlm);
116: return NULL;
117: }
118: break;
119: }
120:
121: return rtlm;
122: }
123:
124: void
125: mqttUnloadRTLM(int modtype)
126: {
127: switch (modtype) {
128: case 0:
129: dlclose(acc_rtlm);
130: break;
131: case 1:
132: dlclose(pub_rtlm);
133: break;
134: default:
135: dlclose(log_rtlm);
136: break;
137: }
138: }
139:
140: inline int
141: mqttMkDir(sl_config *cfg)
142: {
143: const char *str;
144:
145: if (!cfg)
146: return -1;
147:
148: str = (const char*) cfg_GetAttribute(cfg, CFG("mqttd"), CFG("statedir"));
149: if (!str)
150: return -1;
151:
152: if (mkdir(str, 0600) == -1 && errno != EEXIST)
153: return -1;
154:
155: return 0;
156: }