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IOClass.cpp
Go to the documentation of this file.00001 class IOClass : public ParserIO 00002 { 00003 public: 00004 IOClass() 00005 :socket(0) 00006 {} 00007 void read_text(char *,int *); 00008 void write_text(char *,int); 00009 void set_socket(int s) { 00010 socket = s; 00011 } 00012 void set_parser(Parser *p) { 00013 parser = p; 00014 } 00015 00016 private: 00017 Parser *parser; 00018 int socket; // socket 00019 }; 00020 00021 void IOClass::read_text(char *s,int *l) 00022 { 00023 fd_set rfds; 00024 int n; 00025 00026 FD_ZERO(&rfds); 00027 FD_SET(socket, &rfds); 00028 n = select(socket + 1, &rfds, NULL, NULL, NULL); 00029 if (n == -1) 00030 { 00031 perror("select() failed"); 00032 parser -> m_next_line = NULL; 00033 return; 00034 } 00035 else 00036 if (!n) // huh 00037 { 00038 printf("select() returns 0 (?)\n"); 00039 parser -> m_next_line = NULL; 00040 return; 00041 } 00042 if (FD_ISSET(socket, &rfds)) 00043 { 00044 *l = read(socket, s, *l); 00045 if (*l == -1) 00046 { 00047 perror("read() failed"); 00048 parser -> m_next_line = NULL; 00049 } 00050 else 00051 if (*l == 0) 00052 { 00053 parser -> m_next_line = NULL; 00054 } 00055 else 00056 { 00057 printf("read() returns %d\n",*l); 00058 while (s[strlen(s) - 1] == 13 || s[strlen(s) - 1] == 10) 00059 s[strlen(s) - 1] = 0; 00060 } 00061 } 00062 else 00063 { 00064 printf("socket did not release select() call\n"); 00065 parser -> m_next_line = NULL; 00066 } 00067 } 00068 00069 void IOClass::write_text(char *s,int l) 00070 { 00071 if (write(socket, s, l) == -1) 00072 { 00073 perror("write() failed"); 00074 } 00075 } 00076
