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-rw-r--r--ipc.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/ipc.c b/ipc.c
new file mode 100644
index 0000000..607c50e
--- /dev/null
+++ b/ipc.c
@@ -0,0 +1,64 @@
+#include <stdint.h>
+#include <unistd.h>
+
+#include "ipc.h"
+#include "main.h"
+
+int send(void * self, local_id dst, const Message * msg) {
+ if( self == NULL )
+ return 1;
+
+ my_info_t *me = (my_info_t *) self;
+ if( me->dist_info == NULL )
+ return 1;
+
+ if( dst < 0 || dst > MAX_PROCCNT )
+ return 1;
+
+ uint8_t base = me->id * (me->dist_info->proccnt - 1); // base of block of pipes for this process
+ uint8_t idx = 0;
+
+ if( me->id < dst )
+ idx = base + dst - 1;
+ else
+ idx = base + dst;
+
+ int wr_dscr = me->dist_info->pipes[idx][1];
+ size_t wr_size = sizeof(msg->s_header) + msg->s_header.s_payload_len;
+ if( write( wr_dscr, &msg, wr_size ) != wr_size )
+ return 1;
+
+ return 0;
+}
+
+int send_multicast(void * self, const Message * msg) {
+ if( self == NULL )
+ return 1;
+
+ my_info_t *me = (my_info_t *) self;
+ if( me->dist_info == NULL )
+ return 1;
+
+ size_t wr_size;
+ int wr_dscr;
+
+ uint8_t base = me->id * (me->dist_info->proccnt - 1); // base of block of pipes for this process
+ uint8_t i;
+
+ for( i = 0; i < me->dist_info->proccnt - 1; i++) {
+ wr_dscr = me->dist_info->pipes[base+i][1];
+ wr_size = sizeof(msg->s_header) + msg->s_header.s_payload_len;
+ if( write( wr_dscr, &msg, wr_size ) != wr_size )
+ return 1;
+ }
+
+ return 0;
+}
+
+int receive(void * self, local_id from, Message * msg) {
+ return -1;
+}
+
+int receive_any(void * self, Message * msg) {
+ return -1;
+}