liberdm/src/erdm.c File Reference
#include <stdio.h>#include <stddef.h>#include <stdlib.h>#include <string.h>#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include "erdm.h"#include "erdminternal.h"#include "erdmlog.h"#include "erdmServer.h"Go to the source code of this file.
Functions | |
| int | dmMessageInit (char *szDestination) |
| void | dmMessageFramer (char *szMessage, uDmCommand *pDmCmd) |
| int | dmDisplay (eDmCmdPriority prior, eDmQuality qual) |
| int | dmDisplayPartial (eDmCmdPriority prior, eDmQuality qual, int xUp, int yUp, int xDown, int yDown) |
| int | dmDisplayEraseToWhite (eDmCmdPriority prior) |
| int | dmDump (eDmCmdPriority prior) |
Variables | |
| static int | fInit = 0 |
| static int | sockfd = -1 |
| static struct sockaddr_in | serverAdr |
Function Documentation
| int dmDisplay | ( | eDmCmdPriority | prior, | |
| eDmQuality | qual | |||
| ) |
Definition at line 107 of file erdm.c.
00108 { 00109 char szMsg[DM_MAXCHARONLINE]; 00110 uDmCommand dmCmd; 00111 00112 dmCmd.dmCmdDisplay.cmd = dmCcDisplay; 00113 dmCmd.dmCmdDisplay.priority = prior; 00114 dmCmd.dmCmdDisplay.qual = qual; 00115 00116 dmMessageFramer(szMsg, &dmCmd); 00117 00118 if (!fInit) 00119 { 00120 dmMessageInit("127.0.0.1"); 00121 } 00122 00123 sendto(sockfd, szMsg, strlen(szMsg), 0, (struct sockaddr *) &serverAdr, sizeof(serverAdr)); 00124 return 0; 00125 }
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| int dmDisplayEraseToWhite | ( | eDmCmdPriority | prior | ) |
Definition at line 151 of file erdm.c.
00152 { 00153 char szMsg[DM_MAXCHARONLINE]; 00154 uDmCommand dmCmd; 00155 00156 dmCmd.dmCmdDisplay.cmd = dmCcEraseToWhite; 00157 dmCmd.dmCmdDisplay.priority = prior; 00158 00159 dmMessageFramer(szMsg, &dmCmd); 00160 00161 if (!fInit) 00162 { 00163 dmMessageInit("127.0.0.1"); 00164 } 00165 00166 sendto(sockfd, szMsg, strlen(szMsg), 0, (struct sockaddr *) &serverAdr, sizeof(serverAdr)); 00167 return 0; 00168 }
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| int dmDisplayPartial | ( | eDmCmdPriority | prior, | |
| eDmQuality | qual, | |||
| int | xUp, | |||
| int | yUp, | |||
| int | xDown, | |||
| int | yDown | |||
| ) |
Definition at line 127 of file erdm.c.
00128 { 00129 char szMsg[DM_MAXCHARONLINE]; 00130 uDmCommand dmCmd; 00131 00132 dmCmd.dmCmdDisplayPartial.cmd = dmCcDisplayPartial; 00133 dmCmd.dmCmdDisplayPartial.priority = prior; 00134 dmCmd.dmCmdDisplayPartial.qual = qual; 00135 dmCmd.dmCmdDisplayPartial.xUp = xUp; 00136 dmCmd.dmCmdDisplayPartial.yUp = yUp; 00137 dmCmd.dmCmdDisplayPartial.xDown = xDown; 00138 dmCmd.dmCmdDisplayPartial.yDown = yDown; 00139 00140 dmMessageFramer(szMsg, &dmCmd); 00141 00142 if (!fInit) 00143 { 00144 dmMessageInit("127.0.0.1"); 00145 } 00146 00147 sendto(sockfd, szMsg, strlen(szMsg), 0, (struct sockaddr *) &serverAdr, sizeof(serverAdr)); 00148 return 0; 00149 }
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| int dmDump | ( | eDmCmdPriority | prior | ) |
Definition at line 170 of file erdm.c.
00171 { 00172 ERDM_ERRORPRINTF("dmDump is not implemented.\n"); 00173 return -1; 00174 }
| void dmMessageFramer | ( | char * | szMessage, | |
| uDmCommand * | pDmCmd | |||
| ) |
Definition at line 81 of file erdm.c.
00082 { 00083 switch ((int) pDmCmd->dmCmdGeneric.cmd) 00084 { 00085 case (int) dmCcDisplay: 00086 sprintf(szMessage, "!%d,%d,%d", (int) pDmCmd->dmCmdGeneric.cmd, (int) pDmCmd->dmCmdDisplay.priority, 00087 (int) pDmCmd->dmCmdDisplay.qual); 00088 break; 00089 00090 case (int) dmCcDisplayPartial: 00091 sprintf(szMessage, "!%d,%d,%d,%d,%d,%d,%d", (int) pDmCmd->dmCmdGeneric.cmd, (int) pDmCmd->dmCmdDisplay.priority, 00092 (int) pDmCmd->dmCmdDisplay.qual, pDmCmd->dmCmdDisplayPartial.xUp, pDmCmd->dmCmdDisplayPartial.yUp, 00093 pDmCmd->dmCmdDisplayPartial.xDown, pDmCmd->dmCmdDisplayPartial.yDown); 00094 break; 00095 00096 case (int) dmCcEraseToWhite: 00097 sprintf(szMessage, "!%d,%d", (int) pDmCmd->dmCmdGeneric.cmd, (int) pDmCmd->dmCmdDisplay.priority); 00098 break; 00099 00100 default: 00101 strcpy(szMessage, "error"); 00102 ERDM_ERRORPRINTF("Command Code %d not supported", (int) pDmCmd->dmCmdGeneric.cmd); 00103 break; 00104 } 00105 }
| int dmMessageInit | ( | char * | szDestination | ) |
Definition at line 44 of file erdm.c.
00045 { 00046 int port; 00047 int ret; 00048 struct in_addr destinationAdr; 00049 00050 // Note: 00051 // INADDR_LOOPBACK : "127.0.0.1" 00052 // INADDR_ANY : "0.0.0.0" 00053 00054 if ((ret = inet_pton(AF_INET, szDestination, &destinationAdr)) == 1) 00055 { 00056 ERDM_LOGPRINTF("Sending messages to %s.\n", szDestination); 00057 } 00058 else if (ret == 0) 00059 { 00060 ERDM_ERRORPRINTF("%s not a presentation IP address (not in dotted decimal format).\n", szDestination); 00061 return -1; 00062 } 00063 else 00064 { 00065 ERDM_ERRORPRINTF("Failed to convert to a numeric IP address.\n"); 00066 return -2; 00067 } 00068 00069 dmGetServerPort(&port); 00070 00071 sockfd = socket(AF_INET, SOCK_DGRAM, 0); 00072 bzero(&serverAdr, sizeof(serverAdr)); 00073 serverAdr.sin_family = AF_INET; 00074 serverAdr.sin_addr.s_addr = destinationAdr.s_addr; 00075 serverAdr.sin_port = htons(port); 00076 00077 fInit = 1; 00078 return 0; 00079 }
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Variable Documentation
int fInit = 0 [static] |
