From 51560013d0ab4c823c3d1b28a0d0485cc84b2e40 Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@ucc.gu.uwa.edu.au>
Date: Tue, 23 Nov 2010 11:30:49 +0800
Subject: [PATCH] Snack machine handlers
---
items.cfg | 4 ++
src/server/Makefile | 2 +-
src/server/handler_snack.c | 75 ++++++++++++++++++++++++++++++++++++++
3 files changed, 80 insertions(+), 1 deletion(-)
create mode 100644 src/server/handler_snack.c
diff --git a/items.cfg b/items.cfg
index b101b7e..21e09ef 100644
--- a/items.cfg
+++ b/items.cfg
@@ -13,3 +13,7 @@ coke 6 96 Coke
# Pseudo items
pseudo 0 128 clue # clue.flac
pseudo 1 10 laserprint # print 10 pages
+
+# Snack machine
+snack 13 128 Smiths Salt & Vinegar
+snack 33 128 Smiths Original
diff --git a/src/server/Makefile b/src/server/Makefile
index 34e55f6..10e64eb 100644
--- a/src/server/Makefile
+++ b/src/server/Makefile
@@ -3,7 +3,7 @@
OBJ := main.o server.o logging.o
OBJ += dispense.o itemdb.o
-OBJ += handler_coke.o
+OBJ += handler_coke.o handler_snack.o
BIN := ../../dispsrv
LINKFLAGS := -g ../../cokebank.so
diff --git a/src/server/handler_snack.c b/src/server/handler_snack.c
new file mode 100644
index 0000000..826851e
--- /dev/null
+++ b/src/server/handler_snack.c
@@ -0,0 +1,75 @@
+/*
+ * OpenDispense 2
+ * UCC (University [of WA] Computer Club) Electronic Accounting System
+ * - Dispense Server
+ *
+ * handler_snack.c - Snack machine code
+ *
+ * This file is licenced under the 3-clause BSD Licence. See the file
+ * COPYING for full details.
+ */
+#include "common.h"
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <regex.h>
+
+// === IMPORTS ===
+
+// === PROTOTYPES ===
+ int Snack_InitHandler();
+ int Snack_CanDispense(int User, int Item);
+ int Snack_DoDispense(int User, int Item);
+
+// === GLOBALS ===
+tHandler gSnack_Handler = {
+ "snack",
+ Snack_InitHandler,
+ Snack_CanDispense,
+ Snack_DoDispense
+};
+char *gsSnack_SerialPort = "/dev/ttyS1";
+ int giSnack_SerialFD;
+regex_t gSnack_ResponseRegex;
+
+// == CODE ===
+int Snack_InitHandler()
+{
+ giSnack_SerialFD = open(gsSnack_SerialPort, O_RDWR);
+ regcomp(&gSnack_ResponseRegex, "^(\\d\\d\\d)(.*)$", REG_EXTENDED);
+ return 0;
+}
+
+int Snack_CanDispense(int User, int Item)
+{
+ // Sanity please
+ if( Item < 0 || Item > 99 ) return -1;
+
+ return 1;
+}
+
+/**
+ * \brief Actually do a dispense from the coke machine
+ */
+int Snack_DoDispense(int User, int Item)
+{
+ char tmp[32];
+ regmatch_t matches[4];
+
+ // Sanity please
+ if( Item < 0 || Item > 99 ) return -1;
+
+ // Dispense
+ sprintf(tmp, "V%02i\n", Item);
+ write(giSnack_SerialFD, tmp, 2);
+
+ // Get status
+ read(giSnack_SerialFD, tmp, sizeof(tmp)-1);
+ regexec(&gSnack_ResponseRegex, tmp, sizeof(matches)/sizeof(matches[0]), matches, 0);
+
+ return 0;
+}
+
+
--
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