Added XATTR logging facility to the reqstat module.

[doldaconnect.git] / daemon / reqstat.c

diff --git a/daemon/reqstat.c b/daemon/reqstat.c
index 41ca1c6..34b7ce3 100644 (file)
--- a/daemon/reqstat.c
+++ b/daemon/reqstat.c
@@ -22,6 +22,7 @@
 #include <unistd.h>
 #include <errno.h>
 #include <time.h>
+#include <attr/xattr.h>
 
 #ifdef HAVE_CONFIG_H
 #include <config.h>
@@ -40,7 +41,7 @@ void filelog(char *format, ...)
 {
     FILE *out;
     va_list args;
-    char *b;
+    char *b, *t, *p;
     time_t now;
     
     if(fn == NULL)
@@ -53,24 +54,60 @@ void filelog(char *format, ...)
     va_start(args, format);
     b = vsprintf2(format, args);
     va_end(args);
-    fprintf(out, "%s: %s\n", ctime(&now), b);
+    t = ctime(&now);
+    if((p = strchr(t, '\n')) != NULL)
+       *p = 0;
+    fprintf(out, "%s: %s\n", t, b);
     free(b);
     fclose(out);
 }
 
+void xainc(wchar_t *file, char *an, off_t inc)
+{
+    char buf[32];
+    ssize_t al;
+    off_t val;
+    char *fn;
+    
+    if((fn = icswcstombs(file, NULL, NULL)) == NULL) {
+       flog(LOG_WARNING, "could not convert filename %ls into local charset: %s", file, strerror(errno));
+       return;
+    }
+    if((al = getxattr(fn, an, buf, sizeof(buf) - 1)) < 0) {
+       if(errno != ENOATTR) {
+           flog(LOG_WARNING, "could not get xattr %s on %s: %s", an, fn, strerror(errno));
+           return;
+       }
+       val = 0;
+    } else {
+       buf[al] = 0;
+       val = strtoll(buf, NULL, 10);
+    }
+    val += inc;
+    al = snprintf(buf, sizeof(buf), "%ji", (intmax_t)val);
+    if(setxattr(fn, an, buf, al, 0) < 0)
+       flog(LOG_WARNING, "could not set xattr %s on %s: %s", an, fn, strerror(errno));
+}
+
 void request(struct transfer *transfer, struct trdata *data)
 {
     filelog("request %ls", transfer->path);
+    if(confgetint("reqstat", "xa"))
+       xainc(transfer->path, "user.dc-req", 1);
 }
 
 void start(struct transfer *transfer, struct trdata *data)
 {
-    filelog("start %ls at %zi\n", transfer->path, data->startpos);
+    filelog("start %ls at %zi", transfer->path, data->startpos);
+    if(confgetint("reqstat", "xa"))
+       xainc(transfer->path, "user.dc-started", 1);
 }
 
 void finish(struct transfer *transfer, struct trdata *data)
 {
-    filelog("finish %ls at %zi, total %zi\n", transfer->path, transfer->curpos, transfer->curpos - data->startpos);
+    filelog("finish %ls at %zi, total %zi", transfer->path, transfer->curpos, transfer->curpos - data->startpos);
+    if(confgetint("reqstat", "xa"))
+       xainc(transfer->path, "user.dc-bytes", transfer->curpos - data->startpos);
 }
 
 static int chattr(struct transfer *transfer, wchar_t *attrib, struct trdata *data)
@@ -92,7 +129,8 @@ static int chattr(struct transfer *transfer, wchar_t *attrib, struct trdata *dat
 
 static int destroy(struct transfer *transfer, struct trdata *data)
 {
-    finish(transfer, data);
+    if(transfer->curpos > data->startpos)
+       finish(transfer, data);
     free(data);
     return(0);
 }
@@ -113,7 +151,7 @@ static int chfile(struct configvar *var, void *uudata)
 {
     if(fn != NULL)
        free(fn);
-    if(var->val.str[0] == L'0') {
+    if(var->val.str[0] == L'\0') {
        fn = NULL;
     } else {
        if((fn = icwcstombs(var->val.str, NULL)) == NULL)
@@ -122,18 +160,26 @@ static int chfile(struct configvar *var, void *uudata)
     return(0);
 }
 
-static void preinit(int hup)
+static int init(int hup)
 {
     if(!hup) {
        GCBREG(newtransfercb, reg, NULL);
+       chfile(confgetvar("reqstat", "file"), NULL);
        CBREG(confgetvar("reqstat", "file"), conf_update, chfile, NULL, NULL);
     }
+    return(0);
 }
 
 static struct configvar myvars[] = {
     /** The name of a file to log upload request information to. If
      * unspecified, upload requests will not be logged. */
     {CONF_VAR_STRING, "file", {.str = L""}},
+    /** If set to true, upload statistics of files will be accumulated
+     * in counters stored in extends attributes (see attr(5)) on the
+     * files themselves. The data accumulated is the number of
+     * requests, the number of successfully started uploads and the
+     * number of uploaded bytes. */
+    {CONF_VAR_BOOL, "xa", {.num = 0}},
     {CONF_VAR_END}
 };
 
@@ -141,8 +187,8 @@ static struct module me = {
     .conf = {
        .vars = myvars
     },
-    .preinit = preinit,
+    .init = init,
     .name = "reqstat"
 };
 
-MODULE(me);
+MODULE(me)