From: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
To: Xen Devel <xen-devel@lists.xensource.com>
Cc: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Subject: [PATCH 2/3] add a simple logger to the ocaml bindings
Date: Tue, 13 Jul 2010 14:51:12 +0100 [thread overview]
Message-ID: <1279029073-28530-3-git-send-email-vincent.hanquez@eu.citrix.com> (raw)
In-Reply-To: <1279029073-28530-1-git-send-email-vincent.hanquez@eu.citrix.com>
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Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
---
tools/ocaml/libs/xl/xl_stubs.c | 131 ++++++++++++++++++++++-----------------
1 files changed, 74 insertions(+), 57 deletions(-)
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diff --git a/tools/ocaml/libs/xl/xl_stubs.c b/tools/ocaml/libs/xl/xl_stubs.c
index 07809fd..2d0bb54 100644
--- a/tools/ocaml/libs/xl/xl_stubs.c
+++ b/tools/ocaml/libs/xl/xl_stubs.c
@@ -28,24 +28,41 @@
#include "libxl.h"
+struct caml_logger {
+ struct xentoollog_logger logger;
+ int log_offset;
+ char log_buf[2048];
+};
+
+void log_vmessage(struct xentoollog_logger *logger, xentoollog_level level,
+ int errnoval, const char *context, const char *format, va_list al)
+{
+ struct caml_logger *ologger = (struct caml_logger *) logger;
+
+ ologger->log_offset += vsnprintf(ologger->log_buf + ologger->log_offset,
+ 2048 - ologger->log_offset, format, al);
+}
+
+void log_destroy(struct xentoollog_logger *logger)
+{
+}
+
#define INIT_CTX() \
- ret = libxl_ctx_init(&ctx, LIBXL_VERSION, NULL); \
+ lg.logger.vmessage = log_vmessage; \
+ lg.logger.destroy = log_destroy; \
+ lg.logger.progress = NULL; \
+ ret = libxl_ctx_init(&ctx, LIBXL_VERSION, (struct xentoollog_logger *) &lg); \
if (ret != 0) \
- failwith_xl("cannot init context");
+ failwith_xl("cannot init context", &lg);
#define FREE_CTX() \
libxl_ctx_free(&ctx)
-void log_callback(void *userdata, int loglevel, const char *file,
- int line, const char *func, char *s)
-{
-}
-
-void failwith_xl(char *log_data)
+void failwith_xl(char *fname, struct caml_logger *lg)
{
- char s[1024];
- snprintf(s, 1024, "proper logging not implemented yet: error in %s", log_data);
- caml_raise_with_string(*caml_named_value("xl.error"), log_data);
+ char *s;
+ s = (lg) ? lg->log_buf : fname;
+ caml_raise_with_string(*caml_named_value("xl.error"), s);
}
static int string_string_tuple_array_val (char ***c_val, value v)
@@ -298,7 +315,7 @@ static value Val_physinfo(struct libxl_physinfo *c_val)
value stub_xl_domain_make(value info)
{
CAMLparam1(info);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
uint32_t domid;
libxl_domain_create_info c_info;
int ret;
@@ -309,7 +326,7 @@ value stub_xl_domain_make(value info)
ret = libxl_domain_make(&ctx, &c_info, &domid);
if (ret != 0)
- failwith_xl("domain make");
+ failwith_xl("domain make", &lg);
FREE_CTX();
@@ -323,7 +340,7 @@ value stub_xl_domain_build(value info, value domid)
{
CAMLparam2(info, domid);
CAMLlocal1(result);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
libxl_domain_build_info c_info;
libxl_domain_build_state c_state;
int ret;
@@ -336,7 +353,7 @@ value stub_xl_domain_build(value info, value domid)
ret = libxl_domain_build(&ctx, &c_info, c_domid, &c_state);
if (ret != 0)
- failwith_xl("domain_build");
+ failwith_xl("domain_build", &lg);
result = Val_domain_build_state(&c_state);
FREE_CTX();
@@ -348,7 +365,7 @@ value stub_xl_disk_add(value info, value domid)
{
CAMLparam2(info, domid);
libxl_device_disk c_info;
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
device_disk_val(&c_info, info);
@@ -357,7 +374,7 @@ value stub_xl_disk_add(value info, value domid)
INIT_CTX();
ret = libxl_device_disk_add(&ctx, Int_val(domid), &c_info);
if (ret != 0)
- failwith_xl("disk_add");
+ failwith_xl("disk_add", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
}
@@ -366,7 +383,7 @@ value stub_xl_disk_remove(value info, value domid)
{
CAMLparam2(info, domid);
libxl_device_disk c_info;
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
device_disk_val(&c_info, info);
@@ -375,7 +392,7 @@ value stub_xl_disk_remove(value info, value domid)
INIT_CTX();
ret = libxl_device_disk_del(&ctx, &c_info, 0);
if (ret != 0)
- failwith_xl("disk_remove");
+ failwith_xl("disk_remove", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
}
@@ -383,7 +400,7 @@ value stub_xl_disk_remove(value info, value domid)
value stub_xl_nic_add(value info, value domid)
{
CAMLparam2(info, domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
libxl_device_nic c_info;
int ret;
@@ -393,7 +410,7 @@ value stub_xl_nic_add(value info, value domid)
INIT_CTX();
ret = libxl_device_nic_add(&ctx, Int_val(domid), &c_info);
if (ret != 0)
- failwith_xl("nic_add");
+ failwith_xl("nic_add", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
}
@@ -401,7 +418,7 @@ value stub_xl_nic_add(value info, value domid)
value stub_xl_nic_remove(value info, value domid)
{
CAMLparam2(info, domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
libxl_device_nic c_info;
int ret;
@@ -411,7 +428,7 @@ value stub_xl_nic_remove(value info, value domid)
INIT_CTX();
ret = libxl_device_nic_del(&ctx, &c_info, 0);
if (ret != 0)
- failwith_xl("nic_remove");
+ failwith_xl("nic_remove", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
}
@@ -419,7 +436,7 @@ value stub_xl_nic_remove(value info, value domid)
value stub_xl_console_add(value info, value state, value domid)
{
CAMLparam3(info, state, domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
libxl_device_console c_info;
libxl_domain_build_state c_state;
int ret;
@@ -432,7 +449,7 @@ value stub_xl_console_add(value info, value state, value domid)
INIT_CTX();
ret = libxl_device_console_add(&ctx, Int_val(domid), &c_info);
if (ret != 0)
- failwith_xl("console_add");
+ failwith_xl("console_add", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
}
@@ -440,7 +457,7 @@ value stub_xl_console_add(value info, value state, value domid)
value stub_xl_vkb_add(value info, value domid)
{
CAMLparam2(info, domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
libxl_device_vkb c_info;
int ret;
@@ -450,7 +467,7 @@ value stub_xl_vkb_add(value info, value domid)
INIT_CTX();
ret = libxl_device_vkb_add(&ctx, Int_val(domid), &c_info);
if (ret != 0)
- failwith_xl("vkb_add");
+ failwith_xl("vkb_add", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -459,13 +476,13 @@ value stub_xl_vkb_add(value info, value domid)
value stub_xl_vkb_clean_shutdown(value domid)
{
CAMLparam1(domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_device_vkb_clean_shutdown(&ctx, Int_val(domid));
if (ret != 0)
- failwith_xl("vkb_clean_shutdown");
+ failwith_xl("vkb_clean_shutdown", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -474,13 +491,13 @@ value stub_xl_vkb_clean_shutdown(value domid)
value stub_xl_vkb_hard_shutdown(value domid)
{
CAMLparam1(domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_device_vkb_hard_shutdown(&ctx, Int_val(domid));
if (ret != 0)
- failwith_xl("vkb_hard_shutdown");
+ failwith_xl("vkb_hard_shutdown", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -489,7 +506,7 @@ value stub_xl_vkb_hard_shutdown(value domid)
value stub_xl_vfb_add(value info, value domid)
{
CAMLparam2(info, domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
libxl_device_vfb c_info;
int ret;
@@ -499,7 +516,7 @@ value stub_xl_vfb_add(value info, value domid)
INIT_CTX();
ret = libxl_device_vfb_add(&ctx, Int_val(domid), &c_info);
if (ret != 0)
- failwith_xl("vfb_add");
+ failwith_xl("vfb_add", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -508,13 +525,13 @@ value stub_xl_vfb_add(value info, value domid)
value stub_xl_vfb_clean_shutdown(value domid)
{
CAMLparam1(domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_device_vfb_clean_shutdown(&ctx, Int_val(domid));
if (ret != 0)
- failwith_xl("vfb_clean_shutdown");
+ failwith_xl("vfb_clean_shutdown", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -523,13 +540,13 @@ value stub_xl_vfb_clean_shutdown(value domid)
value stub_xl_vfb_hard_shutdown(value domid)
{
CAMLparam1(domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_device_vfb_hard_shutdown(&ctx, Int_val(domid));
if (ret != 0)
- failwith_xl("vfb_hard_shutdown");
+ failwith_xl("vfb_hard_shutdown", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -538,7 +555,7 @@ value stub_xl_vfb_hard_shutdown(value domid)
value stub_xl_pci_add(value info, value domid)
{
CAMLparam2(info, domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
libxl_device_pci c_info;
int ret;
@@ -547,7 +564,7 @@ value stub_xl_pci_add(value info, value domid)
INIT_CTX();
ret = libxl_device_pci_add(&ctx, Int_val(domid), &c_info);
if (ret != 0)
- failwith_xl("pci_add");
+ failwith_xl("pci_add", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -556,7 +573,7 @@ value stub_xl_pci_add(value info, value domid)
value stub_xl_pci_remove(value info, value domid)
{
CAMLparam2(info, domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
libxl_device_pci c_info;
int ret;
@@ -565,7 +582,7 @@ value stub_xl_pci_remove(value info, value domid)
INIT_CTX();
ret = libxl_device_pci_remove(&ctx, Int_val(domid), &c_info);
if (ret != 0)
- failwith_xl("pci_remove");
+ failwith_xl("pci_remove", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -574,13 +591,13 @@ value stub_xl_pci_remove(value info, value domid)
value stub_xl_pci_shutdown(value domid)
{
CAMLparam1(domid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_device_pci_shutdown(&ctx, Int_val(domid));
if (ret != 0)
- failwith_xl("pci_shutdown");
+ failwith_xl("pci_shutdown", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -589,13 +606,13 @@ value stub_xl_pci_shutdown(value domid)
value stub_xl_button_press(value domid, value button)
{
CAMLparam2(domid, button);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_button_press(&ctx, Int_val(domid), Int_val(button) + POWER_BUTTON);
if (ret != 0)
- failwith_xl("button_press");
+ failwith_xl("button_press", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -605,14 +622,14 @@ value stub_xl_physinfo(value unit)
{
CAMLparam1(unit);
CAMLlocal1(physinfo);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
struct libxl_physinfo c_physinfo;
int ret;
INIT_CTX();
ret = libxl_get_physinfo(&ctx, &c_physinfo);
if (ret != 0)
- failwith_xl("physinfo");
+ failwith_xl("physinfo", &lg);
FREE_CTX();
physinfo = Val_physinfo(&c_physinfo);
@@ -623,14 +640,14 @@ value stub_xl_sched_credit_domain_get(value domid)
{
CAMLparam1(domid);
CAMLlocal1(scinfo);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
struct libxl_sched_credit c_scinfo;
int ret;
INIT_CTX();
ret = libxl_sched_credit_domain_get(&ctx, Int_val(domid), &c_scinfo);
if (ret != 0)
- failwith_xl("sched_credit_domain_get");
+ failwith_xl("sched_credit_domain_get", &lg);
FREE_CTX();
scinfo = Val_sched_credit(&c_scinfo);
@@ -640,7 +657,7 @@ value stub_xl_sched_credit_domain_get(value domid)
value stub_xl_sched_credit_domain_set(value domid, value scinfo)
{
CAMLparam2(domid, scinfo);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
struct libxl_sched_credit c_scinfo;
int ret;
@@ -649,7 +666,7 @@ value stub_xl_sched_credit_domain_set(value domid, value scinfo)
INIT_CTX();
ret = libxl_sched_credit_domain_set(&ctx, Int_val(domid), &c_scinfo);
if (ret != 0)
- failwith_xl("sched_credit_domain_set");
+ failwith_xl("sched_credit_domain_set", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
@@ -658,13 +675,13 @@ value stub_xl_sched_credit_domain_set(value domid, value scinfo)
value stub_xl_send_trigger(value domid, value trigger, value vcpuid)
{
CAMLparam3(domid, trigger, vcpuid);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_send_trigger(&ctx, Int_val(domid), String_val(trigger), Int_val(vcpuid));
if (ret != 0)
- failwith_xl("send_trigger");
+ failwith_xl("send_trigger", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
}
@@ -672,13 +689,13 @@ value stub_xl_send_trigger(value domid, value trigger, value vcpuid)
value stub_xl_send_sysrq(value domid, value sysrq)
{
CAMLparam2(domid, sysrq);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_send_sysrq(&ctx, Int_val(domid), Int_val(sysrq));
if (ret != 0)
- failwith_xl("send_sysrq");
+ failwith_xl("send_sysrq", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
}
@@ -686,13 +703,13 @@ value stub_xl_send_sysrq(value domid, value sysrq)
value stub_xl_send_debug_keys(value keys)
{
CAMLparam1(keys);
- struct libxl_ctx ctx;
+ struct libxl_ctx ctx; struct caml_logger lg;
int ret;
INIT_CTX();
ret = libxl_send_debug_keys(&ctx, String_val(keys));
if (ret != 0)
- failwith_xl("send_debug_keys");
+ failwith_xl("send_debug_keys", &lg);
FREE_CTX();
CAMLreturn(Val_unit);
}
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next prev parent reply other threads:[~2010-07-13 13:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-13 13:51 [PATCH 0/3] update for xl bindings Vincent Hanquez
2010-07-13 13:51 ` [PATCH 1/3] register the ocaml exception so it can be used at the C level Vincent Hanquez
2010-07-13 13:51 ` Vincent Hanquez [this message]
2010-07-13 13:51 ` [PATCH 3/3] Properly adjust fields in ocaml structure to match the C layer Vincent Hanquez
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