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From: Wei Liu <wei.liu2@citrix.com>
To: xen-devel@lists.xen.org
Cc: Wei Liu <wei.liu2@citrix.com>,
	ian.jackson@eu.citrix.com, ian.campbell@citrix.com
Subject: [PATCH V4 16/24] libxl: copy function for builtin types
Date: Thu, 1 May 2014 13:58:13 +0100	[thread overview]
Message-ID: <1398949101-23320-17-git-send-email-wei.liu2@citrix.com> (raw)
In-Reply-To: <1398949101-23320-1-git-send-email-wei.liu2@citrix.com>

These functions will be used in later patch to deep-copy a structure.

Functions introduced:
 * libxl_string_list_copy
 * libxl_key_value_list_copy
 * libxl_hwcap_copy
 * libxl_mac_copy
 * libxl_cpuid_policy_list_copy
 * libxl_string_copy
 * libxl_bitmap_copy_alloc
 * libxl_uuid_copy_ctx

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
 tools/libxl/libxl.c         |   67 +++++++++++++++++++++++++++++++++++++++++++
 tools/libxl/libxl.h         |   14 +++++++--
 tools/libxl/libxl_cpuid.c   |   33 +++++++++++++++++++++
 tools/libxl/libxl_nocpuid.c |    6 ++++
 tools/libxl/libxl_utils.c   |   25 ++++++++++++++++
 tools/libxl/libxl_utils.h   |    4 +++
 tools/libxl/libxl_uuid.c    |   12 ++++++++
 tools/libxl/libxl_uuid.h    |    4 +++
 8 files changed, 163 insertions(+), 2 deletions(-)

diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 08c4f54..3e79f61 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -205,6 +205,29 @@ void libxl_string_list_dispose(libxl_string_list *psl)
     free(sl);
 }
 
+void libxl_string_list_copy(libxl_ctx *ctx,
+                            libxl_string_list *dst,
+                            libxl_string_list *src)
+{
+    GC_INIT(ctx);
+    int i, len;
+
+    if (!*src) {
+        *dst = NULL;
+        goto out;
+    }
+
+    len = libxl_string_list_length(src);
+    /* one extra slot for sentinel */
+    *dst = libxl__calloc(NOGC, len + 1, sizeof(char *));
+
+    for (i = 0; i < len; i++)
+        (*dst)[i] = libxl__strdup(NOGC, (*src)[i]);
+
+out:
+    GC_FREE;
+}
+
 int libxl_string_list_length(const libxl_string_list *psl)
 {
     int i = 0;
@@ -244,6 +267,34 @@ void libxl_key_value_list_dispose(libxl_key_value_list *pkvl)
     free(kvl);
 }
 
+void libxl_key_value_list_copy(libxl_ctx *ctx,
+                               libxl_key_value_list *dst,
+                               libxl_key_value_list *src)
+{
+    GC_INIT(ctx);
+    int i, len;
+
+    if (*src == NULL) {
+        *dst = NULL;
+        goto out;
+    }
+
+    len = libxl_key_value_list_length(src);
+    /* one extra slot for sentinel */
+    *dst = libxl__calloc(NOGC, len * 2 + 1, sizeof(char *));
+
+    for (i = 0; i < len * 2; i += 2) {
+        (*dst)[i] = libxl__strdup(NOGC, (*src)[i]);
+        if ((*src)[i+1])
+            (*dst)[i+1] = libxl__strdup(NOGC, (*src)[i+1]);
+        else
+            (*dst)[i+1] = NULL;
+    }
+
+out:
+    GC_FREE;
+}
+
 void libxl_defbool_set(libxl_defbool *db, bool b)
 {
     db->val = b ? LIBXL__DEFBOOL_TRUE : LIBXL__DEFBOOL_FALSE;
@@ -5680,6 +5731,22 @@ int libxl_fd_set_cloexec(libxl_ctx *ctx, int fd, int cloexec)
 int libxl_fd_set_nonblock(libxl_ctx *ctx, int fd, int nonblock)
   { return fd_set_flags(ctx,fd, F_GETFL,F_SETFL,"FL", O_NONBLOCK, nonblock); }
 
+
+void libxl_hwcap_copy(libxl_ctx *ctx,libxl_hwcap *dst, libxl_hwcap *src)
+{
+    int i;
+
+    for (i = 0; i < 8; i++)
+        (*dst)[i] = (*src)[i];
+}
+
+void libxl_mac_copy(libxl_ctx *ctx, libxl_mac *dst, libxl_mac *src)
+{
+    int i;
+
+    for (i = 0; i < 6; i++)
+        (*dst)[i] = (*src)[i];
+}
 /*
  * Local variables:
  * mode: C
diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index 3755bad..c6a9a0d 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -479,20 +479,29 @@
  */
 #define LIBXL_HAVE_SSID_AND_CPUPOOLID_PARSING 1
 
+typedef struct libxl__ctx libxl_ctx;
+
 typedef uint8_t libxl_mac[6];
 #define LIBXL_MAC_FMT "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx"
 #define LIBXL_MAC_FMTLEN ((2*6)+5) /* 6 hex bytes plus 5 colons */
 #define LIBXL_MAC_BYTES(mac) mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]
+void libxl_mac_copy(libxl_ctx *ctx, libxl_mac *dst, libxl_mac *src);
 
 typedef char **libxl_string_list;
 void libxl_string_list_dispose(libxl_string_list *sl);
 int libxl_string_list_length(const libxl_string_list *sl);
+void libxl_string_list_copy(libxl_ctx *ctx, libxl_string_list *dst,
+                            libxl_string_list *src);
 
 typedef char **libxl_key_value_list;
 void libxl_key_value_list_dispose(libxl_key_value_list *kvl);
 int libxl_key_value_list_length(libxl_key_value_list *kvl);
+void libxl_key_value_list_copy(libxl_ctx *ctx,
+                               libxl_key_value_list *dst,
+                               libxl_key_value_list *src);
 
 typedef uint32_t libxl_hwcap[8];
+void libxl_hwcap_copy(libxl_ctx *ctx, libxl_hwcap *dst, libxl_hwcap *src);
 
 typedef uint64_t libxl_ev_user;
 
@@ -511,6 +520,9 @@ typedef struct libxl__cpuid_policy libxl_cpuid_policy;
 typedef libxl_cpuid_policy * libxl_cpuid_policy_list;
 void libxl_cpuid_dispose(libxl_cpuid_policy_list *cpuid_list);
 int libxl_cpuid_policy_list_length(libxl_cpuid_policy_list *l);
+void libxl_cpuid_policy_list_copy(libxl_ctx *ctx,
+                                  libxl_cpuid_policy_list *dst,
+                                  libxl_cpuid_policy_list *src);
 
 #define LIBXL_PCI_FUNC_ALL (~0U)
 
@@ -561,8 +573,6 @@ bool libxl_defbool_val(libxl_defbool db);
 
 const char *libxl_defbool_to_string(libxl_defbool b);
 
-typedef struct libxl__ctx libxl_ctx;
-
 #define LIBXL_TIMER_MODE_DEFAULT -1
 #define LIBXL_MEMKB_DEFAULT ~0ULL
 
diff --git a/tools/libxl/libxl_cpuid.c b/tools/libxl/libxl_cpuid.c
index 7f27c67..aab9d0a 100644
--- a/tools/libxl/libxl_cpuid.c
+++ b/tools/libxl/libxl_cpuid.c
@@ -462,6 +462,39 @@ int libxl_cpuid_policy_list_length(libxl_cpuid_policy_list *l)
     return i;
 }
 
+void libxl_cpuid_policy_list_copy(libxl_ctx *ctx,
+                                  libxl_cpuid_policy_list *dst,
+                                  libxl_cpuid_policy_list *src)
+{
+    GC_INIT(ctx);
+    int i, j, len;
+
+    if (*src == NULL) {
+        *dst = NULL;
+        goto out;
+    }
+
+    len = libxl_cpuid_policy_list_length(src);
+    /* one extra slot for sentinel */
+    *dst = libxl__calloc(NOGC, len + 1, sizeof(libxl_cpuid_policy));
+    (*dst)[len].input[0] = XEN_CPUID_INPUT_UNUSED;
+    (*dst)[len].input[1] = XEN_CPUID_INPUT_UNUSED;
+
+    for (i = 0; i < len; i++) {
+        for (j = 0; j < 2; j++)
+            (*dst)[i].input[j] = (*src)[i].input[j];
+        for (j = 0; j < 4; j++)
+            if ((*src)[i].policy[j])
+                (*dst)[i].policy[j] =
+                    libxl__strdup(NOGC, (*src)[i].policy[j]);
+            else
+                (*dst)[i].policy[j] = NULL;
+    }
+
+out:
+    GC_FREE;
+}
+
 /*
  * Local variables:
  * mode: C
diff --git a/tools/libxl/libxl_nocpuid.c b/tools/libxl/libxl_nocpuid.c
index eb525fc..698d252 100644
--- a/tools/libxl/libxl_nocpuid.c
+++ b/tools/libxl/libxl_nocpuid.c
@@ -51,6 +51,12 @@ int libxl_cpuid_policy_list_parse_json(libxl__gc *gc,
     return 0;
 }
 
+void libxl_cpuid_policy_list_copy(libxl_ctx *ctx,
+                                  libxl_cpuid_policy_list *dst,
+                                  libxl_cpuid_policy_list *src)
+{
+}
+
 /*
  * Local variables:
  * mode: C
diff --git a/tools/libxl/libxl_utils.c b/tools/libxl/libxl_utils.c
index 476921e..0f85579 100644
--- a/tools/libxl/libxl_utils.c
+++ b/tools/libxl/libxl_utils.c
@@ -614,6 +614,19 @@ void libxl_bitmap_copy(libxl_ctx *ctx, libxl_bitmap *dptr,
     memcpy(dptr->map, sptr->map, sz * sizeof(*dptr->map));
 }
 
+void libxl_bitmap_copy_alloc(libxl_ctx *ctx,
+                             libxl_bitmap *dptr,
+                             const libxl_bitmap *sptr)
+{
+    GC_INIT(ctx);
+
+    dptr->map = libxl__calloc(NOGC, sptr->size, sizeof(*sptr->map));
+    dptr->size = sptr->size;
+    memcpy(dptr->map, sptr->map, sptr->size * sizeof(*sptr->map));
+
+    GC_FREE;
+}
+
 int libxl_bitmap_is_full(const libxl_bitmap *bitmap)
 {
     int i;
@@ -1013,6 +1026,18 @@ int libxl_domid_valid_guest(uint32_t domid)
     return domid > 0 && domid < DOMID_FIRST_RESERVED;
 }
 
+void libxl_string_copy(libxl_ctx *ctx, char **dst, char **src)
+{
+    GC_INIT(ctx);
+
+    if (*src)
+        *dst = libxl__strdup(NOGC, *src);
+    else
+        *dst = NULL;
+
+    GC_FREE;
+}
+
 /*
  * Local variables:
  * mode: C
diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h
index 8bfb81b..cc528d2 100644
--- a/tools/libxl/libxl_utils.h
+++ b/tools/libxl/libxl_utils.h
@@ -76,6 +76,8 @@ int libxl_devid_to_device_vtpm(libxl_ctx *ctx, uint32_t domid,
 int libxl_bitmap_alloc(libxl_ctx *ctx, libxl_bitmap *bitmap, int n_bits);
     /* Allocated bimap is from malloc, libxl_bitmap_dispose() to be
      * called by the application when done. */
+void libxl_bitmap_copy_alloc(libxl_ctx *ctx, libxl_bitmap *dptr,
+                             const libxl_bitmap *sptr);
 void libxl_bitmap_copy(libxl_ctx *ctx, libxl_bitmap *dptr,
                        const libxl_bitmap *sptr);
 int libxl_bitmap_is_full(const libxl_bitmap *bitmap);
@@ -121,6 +123,8 @@ int libxl_cpumap_to_nodemap(libxl_ctx *ctx,
     return (s + 1023) / 1024;
 }
 
+void libxl_string_copy(libxl_ctx *ctx, char **dst, char **src);
+
 #endif
 
 /*
diff --git a/tools/libxl/libxl_uuid.c b/tools/libxl/libxl_uuid.c
index ecc29c7..1941883 100644
--- a/tools/libxl/libxl_uuid.c
+++ b/tools/libxl/libxl_uuid.c
@@ -40,6 +40,12 @@ void libxl_uuid_copy(libxl_uuid *dst, const libxl_uuid *src)
      uuid_copy(dst->uuid, src->uuid);
 }
 
+void libxl_uuid_copy_ctx(libxl_ctx *ctx, libxl_uuid *dst,
+                         const libxl_uuid *src)
+{
+     uuid_copy(dst->uuid, src->uuid);
+}
+
 void libxl_uuid_clear(libxl_uuid *uuid)
 {
      uuid_clear(uuid->uuid);
@@ -87,6 +93,12 @@ void libxl_uuid_copy(libxl_uuid *dst, const libxl_uuid *src)
      memcpy(dst->uuid, src->uuid, sizeof(dst->uuid));
 }
 
+void libxl_uuid_copy_ctx(libxl_ctx *ctx, libxl_uuid *dst,
+                         const libxl_uuid *src)
+{
+     memcpy(dst->uuid, src->uuid, sizeof(dst->uuid));
+}
+
 void libxl_uuid_clear(libxl_uuid *uuid)
 {
      memset(uuid->uuid, 0, sizeof(uuid->uuid));
diff --git a/tools/libxl/libxl_uuid.h b/tools/libxl/libxl_uuid.h
index 93c65a7..541f0f8 100644
--- a/tools/libxl/libxl_uuid.h
+++ b/tools/libxl/libxl_uuid.h
@@ -53,10 +53,14 @@ typedef struct {
 
 #endif
 
+typedef struct libxl__ctx libxl_ctx;
+
 int libxl_uuid_is_nil(libxl_uuid *uuid);
 void libxl_uuid_generate(libxl_uuid *uuid);
 int libxl_uuid_from_string(libxl_uuid *uuid, const char *in);
 void libxl_uuid_copy(libxl_uuid *dst, const libxl_uuid *src);
+void libxl_uuid_copy_ctx(libxl_ctx *ctx, libxl_uuid *dst,
+                         const libxl_uuid *src);
 void libxl_uuid_clear(libxl_uuid *uuid);
 int libxl_uuid_compare(libxl_uuid *uuid1, libxl_uuid *uuid2);
 uint8_t *libxl_uuid_bytearray(libxl_uuid *uuid);
-- 
1.7.10.4

  parent reply	other threads:[~2014-05-01 12:58 UTC|newest]

Thread overview: 120+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-01 12:57 [PATCH V4 00/24] JSON infrastructure, new "xl-json" format and domain configuration synchronization Wei Liu
2014-05-01 12:57 ` [PATCH V4 01/24] xl / libxl: push parsing of SSID and CPU pool ID down to libxl Wei Liu
2014-05-06 12:45   ` Ian Campbell
2014-05-06 13:03     ` Wei Liu
2014-05-07  9:50       ` Ian Campbell
2014-05-07 10:30         ` Wei Liu
2014-05-01 12:57 ` [PATCH V4 02/24] libxl: fix memory leak in libxl_cpuid_dispose Wei Liu
2014-05-06 12:47   ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 03/24] libxl.h: document the paradigm of using libxl types Wei Liu
2014-05-06 12:49   ` Ian Campbell
2014-05-06 13:12     ` Ian Jackson
2014-05-06 13:49       ` Wei Liu
2014-05-07  9:53       ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 04/24] libxl.h: move / add some libxl defbool #define here Wei Liu
2014-05-06 12:50   ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 05/24] libxl IDL: rename json_fn to json_gen_fn Wei Liu
2014-05-01 12:58 ` [PATCH V4 06/24] libxl_json: introduce libx__object_from_json Wei Liu
2014-05-06 12:53   ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 07/24] libxl_internal: make JSON_* types a bit-field Wei Liu
2014-05-01 12:58 ` [PATCH V4 08/24] libxl_internal: introduce libxl__json_object_is_{null, number, double} Wei Liu
2014-05-01 12:58 ` [PATCH V4 09/24] libxl_json: introduce parser functions for builtin types Wei Liu
2014-05-06 12:57   ` Ian Campbell
2014-05-06 13:06     ` Wei Liu
2014-05-07  9:57       ` Ian Campbell
2014-05-06 13:57     ` Anthony PERARD
2014-05-06 14:04       ` Wei Liu
2014-05-06 14:35         ` Anthony PERARD
2014-05-06 14:45           ` Wei Liu
2014-05-06 14:49             ` Wei Liu
2014-05-06 15:14               ` Anthony PERARD
2014-05-06 15:42                 ` Wei Liu
2014-05-06 15:59                   ` Anthony PERARD
2014-05-06 16:13                     ` Wei Liu
2014-05-12 16:43                   ` Wei Liu
2014-05-13  8:26                     ` Ian Campbell
2014-05-13  9:19                       ` Wei Liu
2014-05-13  9:32                         ` Ian Campbell
2014-05-13 10:40                           ` Wei Liu
2014-05-13 10:45                             ` Ian Campbell
2014-05-13 10:51                               ` Wei Liu
2014-05-13 10:55                                 ` Ian Campbell
2014-05-13 11:03                                   ` Wei Liu
2014-05-13 11:13                                     ` Ian Campbell
2014-05-13 11:38                                       ` Wei Liu
2014-05-13 11:28                                     ` Anthony PERARD
2014-05-13 11:40                                       ` Wei Liu
2014-05-13 11:54                                         ` Ian Campbell
2014-05-13 11:58                                           ` Wei Liu
2014-05-01 12:58 ` [PATCH V4 10/24] libxl_json: allow basic JSON type objects generation Wei Liu
2014-05-06 13:02   ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 11/24] libxl/gentypes.py: include discriminator in JSON output Wei Liu
2014-05-06 13:03   ` Ian Campbell
2014-05-06 13:09     ` Wei Liu
2014-05-07 10:00       ` Ian Campbell
2014-05-07 10:35         ` Wei Liu
2014-05-07 10:45           ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 12/24] libxl IDL: generate code to parse libxl__json_object to libxl_FOO struct Wei Liu
2014-05-06 13:45   ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 13/24] libxl/gentest.py: test JSON parser Wei Liu
2014-05-06 13:46   ` Ian Campbell
2014-05-06 14:11     ` Wei Liu
2014-05-01 12:58 ` [PATCH V4 14/24] libxl: introduce libxl_key_value_list_length Wei Liu
2014-05-06 13:50   ` Ian Campbell
2014-05-06 14:13     ` Wei Liu
2014-05-01 12:58 ` [PATCH V4 15/24] libxl: introduce libxl_cpuid_policy_list_length Wei Liu
2014-05-06 13:51   ` Ian Campbell
2014-05-06 14:17     ` Wei Liu
2014-05-01 12:58 ` Wei Liu [this message]
2014-05-06 14:03   ` [PATCH V4 16/24] libxl: copy function for builtin types Ian Campbell
2014-05-06 14:36     ` Wei Liu
2014-05-07 10:05       ` Ian Campbell
2014-05-07 10:19         ` Wei Liu
2014-05-07 10:40           ` Ian Campbell
2014-05-07 10:47     ` Ian Jackson
2014-05-07 10:57       ` Ian Campbell
2014-05-07 12:55         ` Wei Liu
2014-05-07 13:10           ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 17/24] libxl IDL: generate deep copy functions Wei Liu
2014-05-06 14:06   ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 18/24] libxl/gentest.py: test " Wei Liu
2014-05-06 14:06   ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 19/24] xl: introduce and use "xl-json" format Wei Liu
2014-05-06 14:26   ` Ian Campbell
2014-05-06 15:17     ` Wei Liu
2014-05-06 16:35       ` Wei Liu
2014-05-07 10:11       ` Ian Campbell
2014-05-07 11:18         ` Ian Jackson
2014-05-07 11:20         ` Wei Liu
2014-05-07 11:30           ` Ian Campbell
2014-05-07 13:00             ` Wei Liu
2014-05-07 13:08               ` Ian Campbell
2014-05-07 11:16       ` Ian Jackson
2014-05-07 11:20         ` Ian Campbell
2014-05-07 12:56         ` Wei Liu
2014-05-01 12:58 ` [PATCH V4 20/24] xl: introduce load/save_domain_config Wei Liu
2014-05-06 14:28   ` Ian Campbell
2014-05-06 15:03     ` Wei Liu
2014-05-07 10:12       ` Ian Campbell
2014-05-01 12:58 ` [PATCH V4 21/24] xl: update domain configuration when running mem-set and mem-max Wei Liu
2014-05-06 14:30   ` Ian Campbell
2014-05-06 14:56     ` Wei Liu
2014-05-01 12:58 ` [PATCH V4 22/24] xl: update domain configuration when we hotplug a device Wei Liu
2014-05-06 15:44   ` Ian Campbell
2014-05-06 15:58     ` Wei Liu
2014-05-07 10:16       ` Ian Campbell
2014-05-06 16:57   ` David Vrabel
2014-05-06 17:13     ` Wei Liu
2014-05-07 10:21       ` David Vrabel
2014-05-07 10:42         ` Ian Campbell
2014-05-07 10:59       ` Andrew Cooper
2014-05-01 12:58 ` [PATCH V4 23/24] libxl: consider force removal of device successful Wei Liu
2014-05-06 15:48   ` Ian Campbell
2014-05-06 16:04     ` Wei Liu
2014-05-07 10:18       ` Ian Campbell
2014-05-07 13:09         ` Wei Liu
2014-05-01 12:58 ` [PATCH V4 24/24] xl: update configuration when we unplug a device Wei Liu
2014-05-06 15:55   ` Ian Campbell
2014-05-06 16:12     ` Wei Liu
2014-05-07 10:20       ` Ian Campbell
2014-05-01 13:02 ` [PATCH V4 00/24] JSON infrastructure, new "xl-json" format and domain configuration synchronization Wei Liu

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