80bd109cd3
- move system calls for use by services from libminlib into libsys; - move srv_fork(2) and srv_kill(2) from RS and into libsys; - replace getprocnr(2) with sef_self(3); - rename previous getnprocnr(2) to getprocnr(2); - clean up getepinfo(2); - change all libsys calls that used _syscall to use _taskcall, so as to avoid going through errno to pass errors; this is already how most calls work anyway, and many of the calls previously using _syscall were already assumed to return the actual error; - initialize request messages to zero, for future compatibility (note that this does not include PCI calls, which are in need of a much bigger overhaul, nor kernel calls); - clean up more of dead DS code as a side effect. Change-Id: I8788f54c68598fcf58e23486e270c2d749780ebb
92 lines
2 KiB
C
92 lines
2 KiB
C
#include "inc.h"
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char *key_u32 = "test_u32";
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/* SEF functions and variables. */
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static void sef_local_startup(void);
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/*===========================================================================*
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* main *
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*===========================================================================*/
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int main(void)
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{
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int r;
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message mess;
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char key[DS_MAX_KEYLEN];
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int type;
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u32_t num;
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char string[17];
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char buf[1000];
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size_t length = 1000;
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/* SEF local startup. */
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sef_local_startup();
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/* Subscribe. */
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r = ds_subscribe(key_u32, DSF_INITIAL);
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if(r != OK && r != EEXIST) {
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printf("SUBSCRIBER: error in ds_subscribe: %d\n", r);
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return -1;
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}
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while(1) {
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/* Wait for a message. */
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r = sef_receive(ANY, &mess);
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if(r != OK) {
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printf("SUBSCRIBER: sef_receive failed.\n");
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return 1;
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}
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/* Only handle notifications from DS. */
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if(mess.m_source != DS_PROC_NR)
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continue;
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/* Check which one was changed. */
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r = ds_check(key, &type, NULL);
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if(r == ENOENT) {
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printf("SUBSCRIBER: the key %s was deleted.\n",
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key);
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continue;
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}
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if(r != OK) {
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printf("SUBSCRIBER: error in ds_check.\n");
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continue;
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}
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/* Retrieve the entry. */
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printf("SUBSCRIBER: key: %s, ", key);
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switch(type) {
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case DSF_TYPE_U32:
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r = ds_retrieve_u32(key, &num);
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if(r != OK)
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printf("error in ds_retrieve_u32.\n");
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printf("U32: %d\n", num);
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break;
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case DSF_TYPE_STR:
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r = ds_retrieve_str(key, string, sizeof(string)-1);
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if(r != OK)
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printf("error in ds_retrieve_str.\n");
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printf("STR: %s\n", string);
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break;
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case DSF_TYPE_MEM:
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r = ds_retrieve_mem(key, buf, &length);
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if(r != OK)
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printf("error in ds_retrieve_mem.\n");
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break;
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default:
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printf("error in type! %d\n", type);
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}
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}
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return 0;
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}
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/*===========================================================================*
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* sef_local_startup *
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*===========================================================================*/
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static void sef_local_startup()
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{
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/* Let SEF perform startup. */
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sef_startup();
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}
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