--- /dev/null
+/* Copyright 2005 Princeton University
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+
+ * Neither the name of the copyright holder nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PRINCETON
+UNIVERSITY OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
+WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#include <Python.h>
+
+#include <errno.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "config.h"
+#include "pathconfig.h"
+#include "planetlab.h"
+#include "virtual.h"
+#include "vserver.h"
+#include "vserver-internal.h"
+
+/*
+ * context create
+ */
+static PyObject *
+vserver_chcontext(PyObject *self, PyObject *args)
+{
+ xid_t ctx;
+ uint32_t flags = 0;
+ uint32_t bcaps = ~vc_get_insecurebcaps();
+ rspec_t rspec = { 32, VC_VXF_SCHED_FLAGS, -1, -1 };
+ PyObject *resources;
+ PyObject *cpu_share;
+
+ if (!PyArg_ParseTuple(args, "IO!|K", &ctx, &PyDict_Type, &resources, &flags))
+ return NULL;
+ if ((cpu_share = PyMapping_GetItemString(resources, "nm_cpu_share")) &&
+ (cpu_share = PyNumber_Int(cpu_share)))
+ rspec.cpu_share = PyInt_AsLong(cpu_share);
+
+ if (pl_chcontext(ctx, flags, bcaps, &rspec))
+ PyErr_SetFromErrno(PyExc_OSError);
+
+ return Py_None;
+}
+
+static PyObject *
+vserver_set_rlimit(PyObject *self, PyObject *args) {
+ struct vc_rlimit limits;
+ xid_t xid;
+ int resource;
+ PyObject *ret;
+
+ limits.min = VC_LIM_KEEP;
+ limits.soft = VC_LIM_KEEP;
+ limits.hard = VC_LIM_KEEP;
+
+ if (!PyArg_ParseTuple(args, "IiL", &xid, &resource, &limits.hard))
+ return NULL;
+
+ ret = Py_None;
+ if (vc_set_rlimit(xid, resource, &limits))
+ ret = PyErr_SetFromErrno(PyExc_OSError);
+ else if (vc_get_rlimit(xid, resource, &limits)==-1)
+ ret = PyErr_SetFromErrno(PyExc_OSError);
+ else
+ ret = Py_BuildValue("L",limits.hard);
+
+ return ret;
+}
+
+static PyObject *
+vserver_get_rlimit(PyObject *self, PyObject *args) {
+ struct vc_rlimit limits;
+ xid_t xid;
+ int resource;
+ PyObject *ret;
+
+ limits.min = VC_LIM_KEEP;
+ limits.soft = VC_LIM_KEEP;
+ limits.hard = VC_LIM_KEEP;
+
+ if (!PyArg_ParseTuple(args, "Ii", &xid, &resource))
+ return NULL;
+
+ ret = Py_None;
+ if (vc_get_rlimit(xid, resource, &limits)==-1)
+ ret = PyErr_SetFromErrno(PyExc_OSError);
+ else
+ ret = Py_BuildValue("L",limits.hard);
+
+ return ret;
+}
+
+#if 0
+/*
+ * setsched
+ */
+static PyObject *
+vserver_setsched(PyObject *self, PyObject *args)
+{
+ xid_t xid;
+ struct vc_set_sched sched;
+ struct vc_ctx_flags flags;
+ unsigned cpuguaranteed = 0;
+
+ sched.set_mask = (VC_VXSM_FILL_RATE |
+ VC_VXSM_INTERVAL |
+ VC_VXSM_TOKENS_MIN |
+ VC_VXSM_TOKENS_MAX);
+
+ if (!PyArg_ParseTuple(args, "I|I|I|I|I|I|I", &xid,
+ &sched.fill_rate,
+ &sched.interval,
+ &sched.tokens,
+ &sched.tokens_min,
+ &sched.tokens_max,
+ &cpuguaranteed))
+ return NULL;
+
+ flags.flagword = VC_VXF_SCHED_HARD;
+ flags.mask |= VC_VXF_SCHED_HARD;
+#define VC_VXF_SCHED_SHARE 0x00000800ull
+ if (cpuguaranteed==0) {
+ flags.flagword |= VC_VXF_SCHED_SHARE;
+ flags.mask |= VC_VXF_SCHED_SHARE;
+ }
+
+ if (vc_set_cflags(xid, &flags) == -1)
+ return PyErr_SetFromErrno(PyExc_OSError);
+
+ if (vc_set_sched(xid, &sched) == -1)
+ return PyErr_SetFromErrno(PyExc_OSError);
+
+ return Py_None;
+}
+
+/*
+ * setsched
+ */
+#endif
+
+static PyObject *
+vserver_get_dlimit(PyObject *self, PyObject *args)
+{
+ PyObject *res;
+ char* path;
+ unsigned xid;
+ struct vcmd_ctx_dlimit_v0 data;
+ int r;
+
+ if (!PyArg_ParseTuple(args, "si", &path,&xid))
+ return NULL;
+
+ memset(&data, 0, sizeof(data));
+ data.name = path;
+ data.flags = 0;
+ r = vserver(VCMD_get_dlimit, xid, &data);
+ if (r>=0) {
+ res = Py_BuildValue("(i,i,i,i,i)",
+ data.space_used,
+ data.space_total,
+ data.inodes_used,
+ data.inodes_total,
+ data.reserved);
+ } else {
+ res = PyErr_SetFromErrno(PyExc_OSError);
+ }
+
+ return res;
+}
+
+
+static PyObject *
+vserver_set_dlimit(PyObject *self, PyObject *args)
+{
+ char* path;
+ unsigned xid;
+ struct vcmd_ctx_dlimit_base_v0 init;
+ struct vcmd_ctx_dlimit_v0 data;
+
+ memset(&data,0,sizeof(data));
+ if (!PyArg_ParseTuple(args, "siiiiii", &path,
+ &xid,
+ &data.space_used,
+ &data.space_total,
+ &data.inodes_used,
+ &data.inodes_total,
+ &data.reserved))
+ return NULL;
+
+ data.name = path;
+ data.flags = 0;
+
+ memset(&init, 0, sizeof(init));
+ init.name = path;
+ init.flags = 0;
+
+ if ((vserver(VCMD_add_dlimit, xid, &init) && errno != EEXIST) ||
+ vserver(VCMD_set_dlimit, xid, &data))
+ return PyErr_SetFromErrno(PyExc_OSError);
+
+ return Py_None;
+}
+
+static PyMethodDef methods[] = {
+ { "chcontext", vserver_chcontext, METH_VARARGS,
+ "chcontext to vserver with provided flags" },
+#if 0
+ { "setsched", vserver_setsched, METH_VARARGS,
+ "Change vserver scheduling attributes for given vserver context" },
+#endif
+ { "setdlimit", vserver_set_dlimit, METH_VARARGS,
+ "Set disk limits for given vserver context" },
+ { "getdlimit", vserver_get_dlimit, METH_VARARGS,
+ "Get disk limits for given vserver context" },
+ { "setrlimit", vserver_set_rlimit, METH_VARARGS,
+ "Set resource limits for given resource of a vserver context" },
+ { "getrlimit", vserver_get_rlimit, METH_VARARGS,
+ "Get resource limits for given resource of a vserver context" },
+ { NULL, NULL, 0, NULL }
+};
+
+PyMODINIT_FUNC
+initvserverimpl(void)
+{
+ PyObject *mod;
+
+ mod = Py_InitModule("vserverimpl", methods);
+
+ /* export the set of 'safe' capabilities */
+ PyModule_AddIntConstant(mod, "CAP_SAFE", ~vc_get_insecurebcaps());
+
+ /* export the default vserver directory */
+ PyModule_AddStringConstant(mod, "VSERVER_BASEDIR", DEFAULT_VSERVERDIR);
+
+ /* export limit-related constants */
+ PyModule_AddIntConstant(mod, "DLIMIT_KEEP", (int)CDLIM_KEEP);
+ PyModule_AddIntConstant(mod, "DLIMIT_INF", (int)CDLIM_INFINITY);
+}
git://git.onelab.eu / util-vserver.git / blobdiff