lib, tools: Rename application process and instance

This refactors ouroboros to use "program" instead of "application
process" and "process" instead of "application process instance" to
align with current naming in current Operating Systems courses instead
of the ISO nomenclature adopted by RINA. This change permeates through
the entire implementation. Also contains some minor other refactors.

Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>

10 files changed, 35 insertions, 36 deletions

diff --git a/src/ipcpd/config.h.in b/src/ipcpd/config.h.in
index 39be449d..322c6856 100644
--- a/src/ipcpd/config.h.in
+++ b/src/ipcpd/config.h.in
@@ -23,12 +23,13 @@
 #define PTHREAD_COND_CLOCK  @PTHREAD_COND_CLOCK@
 
 #define SYS_MAX_FLOWS       @SYS_MAX_FLOWS@
-#define AP_RES_FDS          @AP_RES_FDS@
-#define AP_MAX_FLOWS        @AP_MAX_FLOWS@
+#define PROG_RES_FDS        @PROG_RES_FDS@
+#define PROG_MAX_FLOWS      @PROG_MAX_FLOWS@
 
 #define IPCP_ACCEPT_TIMEOUT @IPCP_ACCEPT_TIMEOUT@
 
 #define SOCKET_TIMEOUT      @SOCKET_TIMEOUT@
+#define CONNECT_TIMEOUT     @CONNECT_TIMEOUT@
 
 #define SHM_BUFFER_SIZE     @SHM_BUFFER_SIZE@
 
diff --git a/src/ipcpd/ipcp.c b/src/ipcpd/ipcp.c
index ba89e2cc..42064817 100644
--- a/src/ipcpd/ipcp.c
+++ b/src/ipcpd/ipcp.c
@@ -62,7 +62,7 @@ void ipcp_sig_handler(int         sig,
         case SIGTERM:
         case SIGHUP:
         case SIGQUIT:
-                if (info->si_pid == ipcpi.irmd_api) {
+                if (info->si_pid == ipcpi.irmd_pid) {
                         if (ipcp_get_state() == IPCP_INIT)
                                 ipcp_set_state(IPCP_NULL);
 
@@ -407,7 +407,7 @@ static void * mainloop(void * o)
                                 break;
                         }
 
-                        fd = np1_flow_alloc(msg->api,
+                        fd = np1_flow_alloc(msg->pid,
                                             msg->port_id,
                                             msg->qoscube);
                         if (fd < 0) {
@@ -526,11 +526,11 @@ static int parse_args(int    argc,
         if (!(argc == 4 || argc == 3))
                 return -1;
 
-        /* argument 1: api of irmd */
+        /* argument 1: pid of irmd */
         if (atoi(argv[1]) == 0)
                 return -1;
 
-        ipcpi.irmd_api = atoi(argv[1]);
+        ipcpi.irmd_pid = atoi(argv[1]);
 
         /* argument 2: IPCP name */
         ipcpi.name = argv[2];
diff --git a/src/ipcpd/ipcp.h b/src/ipcpd/ipcp.h
index 62fb310a..fbc44e5d 100644
--- a/src/ipcpd/ipcp.h
+++ b/src/ipcpd/ipcp.h
@@ -73,7 +73,7 @@ struct ipcp_ops {
 #define ipcp_dir_hash_len() (hash_len(ipcpi.dir_hash_algo))
 
 struct ipcp {
-        int                irmd_api;
+        pid_t              irmd_pid;
         char *             name;
 
         enum ipcp_type     type;
diff --git a/src/ipcpd/local/main.c b/src/ipcpd/local/main.c
index 684949d9..dc998965 100644
--- a/src/ipcpd/local/main.c
+++ b/src/ipcpd/local/main.c
@@ -139,7 +139,7 @@ static int ipcp_local_bootstrap(const struct ipcp_config * conf)
                 return -1;
         }
 
-        log_info("Bootstrapped local IPCP with api %d.", getpid());
+        log_info("Bootstrapped local IPCP with pid %d.", getpid());
 
         return 0;
 }
diff --git a/src/ipcpd/normal/dt.c b/src/ipcpd/normal/dt.c
index f99f7072..5692a699 100644
--- a/src/ipcpd/normal/dt.c
+++ b/src/ipcpd/normal/dt.c
@@ -61,7 +61,7 @@ struct {
         struct routing_i * routing[QOS_CUBE_MAX];
 
         struct bmp *       res_fds;
-        struct ae_info     aes[AP_RES_FDS];
+        struct ae_info     aes[PROG_RES_FDS];
         pthread_rwlock_t   lock;
 
         pthread_t          listener;
@@ -127,7 +127,7 @@ static void sdu_handler(int                  fd,
         } else {
                 dt_pci_shrink(sdb);
 
-                if (dt_pci.fd > AP_RES_FDS) {
+                if (dt_pci.fd > PROG_RES_FDS) {
                         if (ipcp_flow_write(dt_pci.fd, sdb))
                                 ipcp_sdb_release(sdb);
                         return;
@@ -225,7 +225,7 @@ int dt_init(enum pol_routing pr,
                 goto fail_rwlock_init;
         }
 
-        dt.res_fds = bmp_create(AP_RES_FDS, 0);
+        dt.res_fds = bmp_create(PROG_RES_FDS, 0);
         if (dt.res_fds == NULL)
                 goto fail_res_fds;
 
diff --git a/src/ipcpd/normal/fa.c b/src/ipcpd/normal/fa.c
index e684abd2..6b8c65aa 100644
--- a/src/ipcpd/normal/fa.c
+++ b/src/ipcpd/normal/fa.c
@@ -50,8 +50,8 @@ typedef FlowAllocMsg flow_alloc_msg_t;
 
 struct {
         pthread_rwlock_t   flows_lock;
-        int                r_fd[AP_MAX_FLOWS];
-        uint64_t           r_addr[AP_MAX_FLOWS];
+        int                r_fd[PROG_MAX_FLOWS];
+        uint64_t           r_addr[PROG_MAX_FLOWS];
         int                fd;
 
         struct sdu_sched * sdu_sched;
@@ -188,7 +188,7 @@ int fa_init(void)
 {
         int i;
 
-        for (i = 0; i < AP_MAX_FLOWS; ++i)
+        for (i = 0; i < PROG_MAX_FLOWS; ++i)
                 destroy_conn(i);
 
         if (pthread_rwlock_init(&fa.flows_lock, NULL))
diff --git a/src/ipcpd/normal/pol/graph.c b/src/ipcpd/normal/pol/graph.c
index a0af19f9..c3b5f976 100644
--- a/src/ipcpd/normal/pol/graph.c
+++ b/src/ipcpd/normal/pol/graph.c
@@ -359,7 +359,7 @@ static int get_min_vertex(struct graph *   graph,
         *v = NULL;
 
         list_for_each(p, &graph->vertices) {
-                if (used[i] == true) {
+                if (used[i]) {
                         i++;
                         continue;
                 }
@@ -592,9 +592,9 @@ int graph_routing_table_lfa(struct graph *     graph,
                             struct list_head * table)
 {
         int *              s_dist;
-        int *              n_dist[AP_MAX_FLOWS];
-        uint64_t           addrs[AP_MAX_FLOWS];
-        int                n_index[AP_MAX_FLOWS];
+        int *              n_dist[PROG_MAX_FLOWS];
+        uint64_t           addrs[PROG_MAX_FLOWS];
+        int                n_index[PROG_MAX_FLOWS];
         struct list_head * p;
         struct list_head * q;
         struct vertex *    v;
@@ -609,7 +609,7 @@ int graph_routing_table_lfa(struct graph *     graph,
 
         pthread_mutex_lock(&graph->lock);
 
-        for (j = 0; j < AP_MAX_FLOWS; j++) {
+        for (j = 0; j < PROG_MAX_FLOWS; j++) {
                 n_dist[i] = NULL;
                 n_index[i] = -1;
                 addrs[i] = -1;
diff --git a/src/ipcpd/normal/pol/link_state.c b/src/ipcpd/normal/pol/link_state.c
index 3979328c..00c72069 100644
--- a/src/ipcpd/normal/pol/link_state.c
+++ b/src/ipcpd/normal/pol/link_state.c
@@ -416,7 +416,7 @@ static void * calculate_pff(void * o)
         struct list_head   table;
         struct list_head * p;
         struct list_head * q;
-        int                fds[AP_MAX_FLOWS];
+        int                fds[PROG_MAX_FLOWS];
 
         instance = (struct routing_i *) o;
 
diff --git a/src/ipcpd/shim-eth-llc/main.c b/src/ipcpd/shim-eth-llc/main.c
index 2dd56856..cd245323 100644
--- a/src/ipcpd/shim-eth-llc/main.c
+++ b/src/ipcpd/shim-eth-llc/main.c
@@ -1107,7 +1107,7 @@ static int eth_llc_ipcp_bootstrap(const struct ipcp_config * conf)
                 goto fail_sdu_writer;
         }
 
-        log_dbg("Bootstrapped shim IPCP over Ethernet with LLC with api %d.",
+        log_dbg("Bootstrapped shim IPCP over Ethernet with LLC with pid %d.",
                 getpid());
 
         return 0;
diff --git a/src/ipcpd/shim-udp/main.c b/src/ipcpd/shim-udp/main.c
index f8248f86..4fafc4de 100644
--- a/src/ipcpd/shim-udp/main.c
+++ b/src/ipcpd/shim-udp/main.c
@@ -631,7 +631,7 @@ static int ipcp_udp_bootstrap(const struct ipcp_config * conf)
                 goto fail_sduloop;
         }
 
-        log_dbg("Bootstrapped shim IPCP over UDP with api %d.", getpid());
+        log_dbg("Bootstrapped shim IPCP over UDP with pid %d.", getpid());
         log_dbg("Bound to IP address %s.", ipstr);
         log_dbg("DNS server address is %s.", dnsstr);
 
@@ -654,7 +654,7 @@ static int ipcp_udp_bootstrap(const struct ipcp_config * conf)
 /* NOTE: Disgusted with this crap */
 static int ddns_send(char * cmd)
 {
-        pid_t api = -1;
+        pid_t pid = -1;
         int wstatus;
         int pipe_fd[2];
         char * argv[] = {NSUPDATE_EXEC, 0};
@@ -665,13 +665,13 @@ static int ddns_send(char * cmd)
                 return -1;
         }
 
-        api = fork();
-        if (api == -1) {
+        pid = fork();
+        if (pid == -1) {
                 log_err("Failed to fork.");
                 return -1;
         }
 
-        if (api == 0) {
+        if (pid == 0) {
                 close(pipe_fd[1]);
                 dup2(pipe_fd[0], 0);
                 execve(argv[0], &argv[0], envp);
@@ -685,9 +685,8 @@ static int ddns_send(char * cmd)
                 return -1;
         }
 
-        waitpid(api, &wstatus, 0);
-        if (WIFEXITED(wstatus) == true &&
-            WEXITSTATUS(wstatus) == 0)
+        waitpid(pid, &wstatus, 0);
+        if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) == 0)
                 log_dbg("Succesfully communicated with DNS server.");
         else
                 log_err("Failed to register with DNS server.");
@@ -699,7 +698,7 @@ static int ddns_send(char * cmd)
 static uint32_t ddns_resolve(char *   name,
                              uint32_t dns_addr)
 {
-        pid_t api = -1;
+        pid_t pid = -1;
         int wstatus;
         int pipe_fd[2];
         char dnsstr[INET_ADDRSTRLEN];
@@ -718,13 +717,13 @@ static uint32_t ddns_resolve(char *   name,
                 return 0;
         }
 
-        api = fork();
-        if (api == -1) {
+        pid = fork();
+        if (pid == -1) {
                 log_err("Failed to fork.");
                 return 0;
         }
 
-        if (api == 0) {
+        if (pid == 0) {
                 char * argv[] = {NSLOOKUP_EXEC, name, dnsstr, 0};
                 char * envp[] = {0};
 
@@ -744,9 +743,8 @@ static uint32_t ddns_resolve(char *   name,
 
         close(pipe_fd[0]);
 
-        waitpid(api, &wstatus, 0);
-        if (WIFEXITED(wstatus) == true &&
-            WEXITSTATUS(wstatus) == 0)
+        waitpid(pid, &wstatus, 0);
+        if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) == 0)
                 log_dbg("Succesfully communicated with nslookup.");
         else
                 log_err("Failed to resolve DNS address.");