Client 4—An Interactive Query Processor
To wrap up this chapter, you'll convert the interactive query processor from the previous chapter into a libpgeasy client.
Most of the code remains the same, so I'll point out only the differences. The most important change is that you no longer have to pass the PGconn * (connection handle) to every function-libpgeasy is managing the connection handle for you.
1 /* 2 ** File: client4.c 3 */ 4 5 #include <stdlib.h> 6 #include <string.h> 7 #include <libpq-fe.h> 8 #include <libpgeasy.h> 9 #include <readline/readline.h> 10 #include <readline/history.h> 11 12 typedef enum { FALSE, TRUE } bool; 13 14 #define MAX_PRINT_LEN 40 15 16 static char separator[MAX_PRINT_LEN+1]; 17 18 void print_result_set( PGresult ...Get PostgreSQL, Second Edition now with the O’Reilly learning platform.
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