This is 0.15

[perl/modules/Linux-SysInfo.git] / SysInfo.xs

diff --git a/SysInfo.xs b/SysInfo.xs
index c2b268d06631a3f4de0c79351a154b5187eb9802..8e4f0dc24542bee2ee4685f51f43802472c12b1e 100644 (file)
--- a/SysInfo.xs
+++ b/SysInfo.xs
@@ -10,7 +10,8 @@
 #include "perl.h"
 #include "XSUB.h"
 
-#define __PACKAGE__ "Linux::SysInfo"
+#define __PACKAGE__     "Linux::SysInfo"
+#define __PACKAGE_LEN__ (sizeof(__PACKAGE__)-1)
 
 /* --- Extended fields ----------------------------------------------------- */
 
@@ -23,23 +24,26 @@
 /* --- Keys ---------------------------------------------------------------- */
 
 #define LS_KEY(K)            (ls_key_##K##_sv)
-#if PERL_API_REVISION >= 5 && PERL_API_VERSION >= 9 && PERL_API_SUBVERSION >= 5
-/* From 5.9.5, newSVpvn_share doesn't seem to fill the UV field of the key SV
- * properly (the SV actually doesn't even look like a UV). That's why we have
- * to keep the hash in another variable. */
+#if PERL_REVISION <= 4 || (PERL_REVISION == 5 && PERL_VERSION <= 6)
+/* newSVpvn_share doesn't exist in perl-5.6.x */
 # define LS_HASH(K)          (ls_key_##K##_hash)
-# define LS_KEY_DECLARE(K)   STATIC SV *LS_KEY(K) = NULL; \
+# define LS_KEY_DECLARE(K)   STATIC const char LS_KEY(K)[] = #K; \
                              STATIC U32 LS_HASH(K) = 0
-# define LS_KEY_DEFINE(K)    PERL_HASH(LS_HASH(K), #K, sizeof(#K)-1); \
-                             LS_KEY(K) = newSVpvn_share(#K, sizeof(#K)-1, \
-                                                       LS_HASH(K));
-# define LS_KEY_STORE(H,K,V) hv_store_ent((H), LS_KEY(K), (V), LS_HASH(K))
+# define LS_KEY_DEFINE(K)    PERL_HASH(LS_HASH(K), LS_KEY(K), sizeof(#K)-1)
+# define LS_KEY_STORE(H,K,V) hv_store((H), LS_KEY(K), sizeof(#K)-1, \
+                                      (V), LS_HASH(K))
 #else
-/* This won't work for 5.9.3 (5.9.4 ?), neither will the previous one.
- * If you want to bleed, upgrade your blead! */
+# if PERL_REVISION > 5 || (PERL_REVISION == 5 && (PERL_VERSION > 9 || (PERL_VERSION == 9 && PERL_SUBVERSION >= 3)))
+/* From perl-5.9.3 (#24802), the key is only a SVt_PV and one can get the hash
+ * value with the SvSHARED_HASH() macro. */
+#  define LS_HASH(K)         SvSHARED_HASH(LS_KEY(K))
+# else
+/* Before, the key was a SVt_PVIV and the hash was stored in the UV field. */
+#  define LS_HASH(K)         SvUVX(LS_KEY(K))
+# endif
 # define LS_KEY_DECLARE(K)   STATIC SV *LS_KEY(K) = NULL
 # define LS_KEY_DEFINE(K)    LS_KEY(K) = newSVpvn_share(#K, sizeof(#K)-1, 0)
-# define LS_KEY_STORE(H,K,V) hv_store_ent((H), LS_KEY(K), (V), SvUVX(LS_KEY(K)))
+# define LS_KEY_STORE(H,K,V) hv_store_ent((H), LS_KEY(K), (V), LS_HASH(K))
 #endif
 
 LS_KEY_DECLARE(uptime);
@@ -68,7 +72,7 @@ PROTOTYPES: ENABLE
 BOOT:
 {
  HV *stash;
- stash = gv_stashpv(__PACKAGE__, TRUE);
+ stash = gv_stashpvn(__PACKAGE__, __PACKAGE_LEN__, TRUE);
  newCONSTSUB(stash, "LS_HAS_EXTENDED", newSViv(LS_HAS_EXTENDED));
 
  LS_KEY_DEFINE(uptime);
@@ -90,40 +94,39 @@ BOOT:
 }
 
 SV *sysinfo()
+PROTOTYPE:
 PREINIT:
  struct sysinfo si;
  NV l;
- HV *h;
+ HV *hv;
 CODE:
- if (sysinfo(&si) == -1) {
-  XSRETURN_UNDEF;
- }
+ if (sysinfo(&si) == -1) XSRETURN_UNDEF;
 
- h = newHV();
+ hv = newHV();
 
- LS_KEY_STORE(h, uptime,    newSViv(si.uptime));
+ LS_KEY_STORE(hv, uptime,    newSViv(si.uptime));
 
  l = ((NV) si.loads[0]) / ((NV) (((U32) 1) << ((U32) SI_LOAD_SHIFT)));
- LS_KEY_STORE(h, load1,     newSVnv(l));
+ LS_KEY_STORE(hv, load1,     newSVnv(l));
  l = ((NV) si.loads[1]) / ((NV) (((U32) 1) << ((U32) SI_LOAD_SHIFT)));
- LS_KEY_STORE(h, load5,     newSVnv(l));
+ LS_KEY_STORE(hv, load5,     newSVnv(l));
  l = ((NV) si.loads[2]) / ((NV) (((U32) 1) << ((U32) SI_LOAD_SHIFT)));
- LS_KEY_STORE(h, load15,    newSVnv(l));
-
- LS_KEY_STORE(h, totalram,  newSVuv(si.totalram));
- LS_KEY_STORE(h, freeram,   newSVuv(si.freeram));
- LS_KEY_STORE(h, sharedram, newSVuv(si.sharedram));
- LS_KEY_STORE(h, bufferram, newSVuv(si.bufferram));
- LS_KEY_STORE(h, totalswap, newSVuv(si.totalswap));
- LS_KEY_STORE(h, freeswap,  newSVuv(si.freeswap));
- LS_KEY_STORE(h, procs,     newSVuv(si.procs));
+ LS_KEY_STORE(hv, load15,    newSVnv(l));
+
+ LS_KEY_STORE(hv, totalram,  newSVuv(si.totalram));
+ LS_KEY_STORE(hv, freeram,   newSVuv(si.freeram));
+ LS_KEY_STORE(hv, sharedram, newSVuv(si.sharedram));
+ LS_KEY_STORE(hv, bufferram, newSVuv(si.bufferram));
+ LS_KEY_STORE(hv, totalswap, newSVuv(si.totalswap));
+ LS_KEY_STORE(hv, freeswap,  newSVuv(si.freeswap));
+ LS_KEY_STORE(hv, procs,     newSVuv(si.procs));
 #if LS_HAS_EXTENDED
- LS_KEY_STORE(h, totalhigh, newSVuv(si.totalhigh));
- LS_KEY_STORE(h, freehigh,  newSVuv(si.freehigh));
- LS_KEY_STORE(h, mem_unit,  newSVuv(si.mem_unit));
+ LS_KEY_STORE(hv, totalhigh, newSVuv(si.totalhigh));
+ LS_KEY_STORE(hv, freehigh,  newSVuv(si.freehigh));
+ LS_KEY_STORE(hv, mem_unit,  newSVuv(si.mem_unit));
 #endif /* LS_HAS_EXTENDED */
 
- RETVAL = newRV_noinc((SV *) h);
+ RETVAL = newRV_noinc((SV *) hv);
 OUTPUT:
  RETVAL