Added app manager IPC interface. Updated verions to 2.1

2026-06-10 19:39:59 +00:00 · 2016-07-24 15:19:13 -07:00
parent 474789340b
commit 64713d9679
16 changed files with 851 additions and 67 deletions
--- a/server/mq_ipc.c
+++ b/server/mq_ipc.c
@@ -0,0 +1,130 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+
+#include "mq_ipc.h"
+
+#define PMODE 0655
+
+static mqd_t mClientServer=-1;
+static mqd_t mServerClient=-1;
+
+int createMessageQ(const char* fd, int flags)
+{
+    struct mq_attr attr;
+    attr.mq_maxmsg = 10;
+    attr.mq_msgsize = 512;
+
+    mqd_t handle = mq_open(fd, flags, PMODE, &attr);
+    if (handle == -1) {
+        printf("Failed to open Q at %s: %s \n", fd, strerror(errno));
+        return -1;
+    }
+
+    return handle;
+}
+
+int sendInternal(const char* payload, int timeoutInSec, bool block)
+{
+    if (mClientServer == -1) {
+        return -1;
+    }
+
+    if (block) {
+        if (mq_send(mClientServer, payload, strlen(payload)+1, 0) == -1) {
+            printf("Failed to send message: %s \n", strerror(errno));
+            return -1;
+        }else{
+            printf("mq message sent.\n");
+        }
+    } else {
+        struct   timespec tm;
+        clock_gettime(CLOCK_REALTIME, &tm);
+        tm.tv_sec += timeoutInSec;
+
+        if (mq_timedsend(mClientServer, payload, strlen(payload)+1, 0, &tm) == -1) {
+            printf("Failed to send message: %s \n", strerror(errno));
+            return -1;
+        }
+    }
+
+    return 0;
+}
+
+int receiveInternal(char* buffer, int bufferSize, int timeoutInSec, bool block)
+{
+    /* mqd_t qFd = getMessageQ(fd); */
+
+    if (mServerClient == -1) {
+        return -1;
+    }
+
+    if (block) {
+        if (mq_receive(mServerClient, buffer, bufferSize, 0) == -1) {
+            printf("Failed to receive message: %s \n", strerror(errno));
+            return -1;
+        }
+    } else {
+        struct   timespec tm;
+        clock_gettime(CLOCK_REALTIME, &tm);
+        tm.tv_sec += timeoutInSec;
+
+        if (mq_timedreceive(mServerClient, buffer, bufferSize, 0, &tm) == -1) {
+            printf("Failed to receive message: %s \n", strerror(errno));
+            return -1;
+        }
+    }
+
+    return 0;
+}
+
+//============== public APIs ===================
+
+int mq_ipc_connect(const char* clientServer, const char* serverClient)
+{    
+    // Write-only to send message to server
+    mClientServer = createMessageQ(clientServer, O_WRONLY);
+
+    // Read-only to receive messages from server.
+    mServerClient = createMessageQ(serverClient, O_RDONLY);
+
+    if ((mServerClient == -1 ) || (mClientServer == -1)) {
+        printf(" failed to conncet to server \n");
+        return -1;
+    }else{
+        printf("mq connected.\n");
+    }
+    
+    return 0;
+}
+
+int mq_ipc_disconnect()
+{
+    mq_close(mClientServer);
+    mq_close(mServerClient);
+    return 0;
+}
+
+int mq_ipc_send(const char* payload)
+{
+    return sendInternal(payload, 0, true);
+}
+
+int mq_ipc_receive(char* buffer, int bufferSize)
+{
+    return receiveInternal(buffer, bufferSize, 0, true);
+}
+
+int mq_ipc_send_timed(const char* payload, int timeoutInSec)
+{
+    return sendInternal(payload, timeoutInSec, false);
+}
+
+int mq_ipc_receive_timed(char* buffer, int bufferSize, int timeoutInSec)
+{
+    return receiveInternal(buffer, bufferSize, timeoutInSec, false);
+}
+
+