/* ** Usage: client_swap ID ID ** ** Interchange the sqlite* pointer between two threads. */ static int tcl_client_swap( void *NotUsed, Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ int argc, /* Number of arguments */ const char **argv /* Text of each argument */ ){ int i, j; sqlite3 *temp; if( argc!=3 ){ Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " ID1 ID2", 0); return TCL_ERROR; } i = parse_client_id(interp, argv[1]); if( i<0 ) return TCL_ERROR; if( !threadset[i].busy ){ Tcl_AppendResult(interp, "no such thread", 0); return TCL_ERROR; } client_wait(&threadset[i]); j = parse_client_id(interp, argv[2]); if( j<0 ) return TCL_ERROR; if( !threadset[j].busy ){ Tcl_AppendResult(interp, "no such thread", 0); return TCL_ERROR; } client_wait(&threadset[j]); temp = threadset[i].db; threadset[i].db = threadset[j].db; threadset[j].db = temp; return TCL_OK; }
/* ** Stop a thread. */ static void stop_thread(Thread *p){ client_wait(p); p->xOp = 0; p->opnum++; client_wait(p); sqlite3_free(p->zArg); p->zArg = 0; sqlite3_free(p->zFilename); p->zFilename = 0; p->busy = 0; }
/* ** Usage: client_reset ID ** ** Finalize the virtual machine. */ static int tcl_client_reset( void *NotUsed, Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ int argc, /* Number of arguments */ const char **argv /* Text of each argument */ ){ int i; if( argc!=2 ){ Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " IDL", 0); return TCL_ERROR; } i = parse_client_id(interp, argv[1]); if( i<0 ) return TCL_ERROR; if( !threadset[i].busy ){ Tcl_AppendResult(interp, "no such thread", 0); return TCL_ERROR; } client_wait(&threadset[i]); threadset[i].xOp = do_reset; sqlite3_free(threadset[i].zArg); threadset[i].zArg = 0; threadset[i].opnum++; return TCL_OK; }
/* ** Usage: client_colname ID N ** ** Wait on the most recent client_step to complete, then return the ** name of the N-th columns in the result set. */ static int tcl_client_colname( void *NotUsed, Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ int argc, /* Number of arguments */ const char **argv /* Text of each argument */ ){ int i; int n; if( argc!=3 ){ Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " ID N", 0); return TCL_ERROR; } i = parse_client_id(interp, argv[1]); if( i<0 ) return TCL_ERROR; if( !threadset[i].busy ){ Tcl_AppendResult(interp, "no such thread", 0); return TCL_ERROR; } if( Tcl_GetInt(interp, argv[2], &n) ) return TCL_ERROR; client_wait(&threadset[i]); if( n<0 || n>=threadset[i].argc ){ Tcl_AppendResult(interp, "column number out of range", 0); return TCL_ERROR; } Tcl_AppendResult(interp, threadset[i].colv[n], 0); return TCL_OK; }
/* ** Usage: client_argc ID ** ** Wait on the most recent client_step to complete, then return the ** number of columns in the result set. */ static int tcl_client_argc( void *NotUsed, Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ int argc, /* Number of arguments */ const char **argv /* Text of each argument */ ){ int i; char zBuf[100]; if( argc!=2 ){ Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " ID", 0); return TCL_ERROR; } i = parse_client_id(interp, argv[1]); if( i<0 ) return TCL_ERROR; if( !threadset[i].busy ){ Tcl_AppendResult(interp, "no such thread", 0); return TCL_ERROR; } client_wait(&threadset[i]); sprintf(zBuf, "%d", threadset[i].argc); Tcl_AppendResult(interp, zBuf, 0); return TCL_OK; }
void broad_cast(client_node_t* current_client, char* message) { client_node_t* client_list = get_client_list(); int c; for(c=1; c<=30; c++) { if(client_list[c].id != -1) { mq_send_msg(TELL_MSG, current_client->id, c, message); kill(client_list[c].pid, SIGUSR1); client_wait(); } } }
/* ** Usage: client_result ID ** ** Wait on the most recent operation to complete, then return the ** result code from that operation. */ static int tcl_client_result( void *NotUsed, Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ int argc, /* Number of arguments */ const char **argv /* Text of each argument */ ){ int i; const char *zName; if( argc!=2 ){ Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " ID", 0); return TCL_ERROR; } i = parse_client_id(interp, argv[1]); if( i<0 ) return TCL_ERROR; if( !threadset[i].busy ){ Tcl_AppendResult(interp, "no such thread", 0); return TCL_ERROR; } client_wait(&threadset[i]); switch( threadset[i].rc ){ case SQLITE_OK: zName = "SQLITE_OK"; break; case SQLITE_ERROR: zName = "SQLITE_ERROR"; break; case SQLITE_PERM: zName = "SQLITE_PERM"; break; case SQLITE_ABORT: zName = "SQLITE_ABORT"; break; case SQLITE_BUSY: zName = "SQLITE_BUSY"; break; case SQLITE_LOCKED: zName = "SQLITE_LOCKED"; break; case SQLITE_NOMEM: zName = "SQLITE_NOMEM"; break; case SQLITE_READONLY: zName = "SQLITE_READONLY"; break; case SQLITE_INTERRUPT: zName = "SQLITE_INTERRUPT"; break; case SQLITE_IOERR: zName = "SQLITE_IOERR"; break; case SQLITE_CORRUPT: zName = "SQLITE_CORRUPT"; break; case SQLITE_FULL: zName = "SQLITE_FULL"; break; case SQLITE_CANTOPEN: zName = "SQLITE_CANTOPEN"; break; case SQLITE_PROTOCOL: zName = "SQLITE_PROTOCOL"; break; case SQLITE_EMPTY: zName = "SQLITE_EMPTY"; break; case SQLITE_SCHEMA: zName = "SQLITE_SCHEMA"; break; case SQLITE_CONSTRAINT: zName = "SQLITE_CONSTRAINT"; break; case SQLITE_MISMATCH: zName = "SQLITE_MISMATCH"; break; case SQLITE_MISUSE: zName = "SQLITE_MISUSE"; break; case SQLITE_NOLFS: zName = "SQLITE_NOLFS"; break; case SQLITE_AUTH: zName = "SQLITE_AUTH"; break; case SQLITE_FORMAT: zName = "SQLITE_FORMAT"; break; case SQLITE_RANGE: zName = "SQLITE_RANGE"; break; case SQLITE_ROW: zName = "SQLITE_ROW"; break; case SQLITE_DONE: zName = "SQLITE_DONE"; break; default: zName = "SQLITE_Unknown"; break; } Tcl_AppendResult(interp, zName, 0); return TCL_OK; }
int tell(client_node_t* current_client, char* client_id_str, char* message) { client_node_t* client_list = get_client_list(); int client_id = atoi(client_id_str); if(client_list[client_id].id == -1 || client_id < 1 || client_id > 30) { return -1; } else { char msg_to_send[2048]; sprintf(msg_to_send, "*** %s told you ***: %s\n", current_client->name, message); mq_send_msg(TELL_MSG, current_client->id, client_id, msg_to_send); kill(client_list[client_id].pid, SIGUSR1); client_wait(); } return 0; }