1 |
mszeredi |
4 |
#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
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dpavlin |
7 |
#include <fuse/fuse.h> |
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mszeredi |
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#undef DEBUGf |
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#if 0 |
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#define DEBUGf(f, a...) fprintf(stderr, "%s:%d (%i): " f,__BASE_FILE__,__LINE__,PL_stack_sp-PL_stack_base ,##a ) |
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#else |
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#define DEBUGf(a...) |
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#endif |
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SV *_PLfuse_callbacks[18]; |
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int _PLfuse_getattr(const char *file, struct stat *result) { |
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dSP; |
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int rv, statcount; |
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ENTER; |
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SAVETMPS; |
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PUSHMARK(SP); |
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XPUSHs(sv_2mortal(newSVpv(file,strlen(file)))); |
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PUTBACK; |
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rv = call_sv(_PLfuse_callbacks[0],G_ARRAY); |
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SPAGAIN; |
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if(rv != 13) { |
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if(rv > 1) { |
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fprintf(stderr,"inappropriate number of returned values from getattr\n"); |
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rv = -ENOSYS; |
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} else if(rv) |
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rv = POPi; |
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else |
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rv = -ENOENT; |
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} else { |
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dpavlin |
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result->st_blocks = POPi; |
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mszeredi |
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result->st_blksize = POPi; |
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result->st_ctime = POPi; |
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result->st_mtime = POPi; |
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result->st_atime = POPi; |
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result->st_size = POPi; |
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result->st_rdev = POPi; |
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result->st_gid = POPi; |
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result->st_uid = POPi; |
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result->st_nlink = POPi; |
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result->st_mode = POPi; |
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/*result->st_ino =*/ POPi; |
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result->st_dev = POPi; |
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rv = 0; |
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} |
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FREETMPS; |
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LEAVE; |
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PUTBACK; |
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return rv; |
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} |
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int _PLfuse_readlink(const char *file,char *buf,size_t buflen) { |
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int rv; |
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char *rvstr; |
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dSP; |
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I32 ax; |
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if(buflen < 1) |
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return EINVAL; |
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ENTER; |
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SAVETMPS; |
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PUSHMARK(SP); |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
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PUTBACK; |
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rv = call_sv(_PLfuse_callbacks[1],G_SCALAR); |
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SPAGAIN; |
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if(!rv) |
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rv = -ENOENT; |
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else { |
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SV *mysv = POPs; |
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if(SvTYPE(mysv) == SVt_IV || SvTYPE(mysv) == SVt_NV) |
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rv = SvIV(mysv); |
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else { |
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strncpy(buf,SvPV_nolen(mysv),buflen); |
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rv = 0; |
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} |
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} |
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FREETMPS; |
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LEAVE; |
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buf[buflen-1] = 0; |
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PUTBACK; |
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return rv; |
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} |
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int _PLfuse_getdir(const char *file, fuse_dirh_t dirh, fuse_dirfil_t dirfil) { |
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int prv, rv; |
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dSP; |
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ENTER; |
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SAVETMPS; |
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PUSHMARK(SP); |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
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PUTBACK; |
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prv = call_sv(_PLfuse_callbacks[2],G_ARRAY); |
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SPAGAIN; |
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if(prv) { |
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rv = POPi; |
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while(--prv) |
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dpavlin |
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dirfil(dirh,POPp,0,0); |
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mszeredi |
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} else { |
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fprintf(stderr,"getdir() handler returned nothing!\n"); |
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rv = -ENOSYS; |
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} |
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FREETMPS; |
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LEAVE; |
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PUTBACK; |
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return rv; |
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} |
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int _PLfuse_mknod (const char *file, mode_t mode, dev_t dev) { |
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int rv; |
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SV *rvsv; |
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char *rvstr; |
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dSP; |
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ENTER; |
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SAVETMPS; |
119 |
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PUSHMARK(SP); |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
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XPUSHs(sv_2mortal(newSViv(mode))); |
122 |
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XPUSHs(sv_2mortal(newSViv(dev))); |
123 |
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PUTBACK; |
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rv = call_sv(_PLfuse_callbacks[3],G_SCALAR); |
125 |
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SPAGAIN; |
126 |
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if(rv) |
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rv = POPi; |
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else |
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rv = 0; |
130 |
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FREETMPS; |
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LEAVE; |
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PUTBACK; |
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return rv; |
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} |
135 |
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136 |
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int _PLfuse_mkdir (const char *file, mode_t mode) { |
137 |
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int rv; |
138 |
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SV *rvsv; |
139 |
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char *rvstr; |
140 |
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dSP; |
141 |
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DEBUGf("mkdir begin: %i\n",sp-PL_stack_base); |
142 |
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ENTER; |
143 |
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SAVETMPS; |
144 |
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PUSHMARK(SP); |
145 |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
146 |
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XPUSHs(sv_2mortal(newSViv(mode))); |
147 |
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PUTBACK; |
148 |
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rv = call_sv(_PLfuse_callbacks[4],G_SCALAR); |
149 |
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SPAGAIN; |
150 |
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if(rv) |
151 |
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rv = POPi; |
152 |
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else |
153 |
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rv = 0; |
154 |
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FREETMPS; |
155 |
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LEAVE; |
156 |
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PUTBACK; |
157 |
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DEBUGf("mkdir end: %i %i\n",sp-PL_stack_base,rv); |
158 |
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return rv; |
159 |
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} |
160 |
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161 |
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162 |
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int _PLfuse_unlink (const char *file) { |
163 |
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int rv; |
164 |
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SV *rvsv; |
165 |
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char *rvstr; |
166 |
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dSP; |
167 |
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DEBUGf("unlink begin: %i\n",sp-PL_stack_base); |
168 |
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ENTER; |
169 |
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SAVETMPS; |
170 |
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PUSHMARK(SP); |
171 |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
172 |
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PUTBACK; |
173 |
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rv = call_sv(_PLfuse_callbacks[5],G_SCALAR); |
174 |
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SPAGAIN; |
175 |
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if(rv) |
176 |
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rv = POPi; |
177 |
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else |
178 |
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rv = 0; |
179 |
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FREETMPS; |
180 |
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LEAVE; |
181 |
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PUTBACK; |
182 |
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DEBUGf("unlink end: %i\n",sp-PL_stack_base); |
183 |
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return rv; |
184 |
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} |
185 |
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186 |
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int _PLfuse_rmdir (const char *file) { |
187 |
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int rv; |
188 |
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SV *rvsv; |
189 |
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char *rvstr; |
190 |
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dSP; |
191 |
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DEBUGf("rmdir begin: %i\n",sp-PL_stack_base); |
192 |
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ENTER; |
193 |
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SAVETMPS; |
194 |
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PUSHMARK(SP); |
195 |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
196 |
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PUTBACK; |
197 |
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rv = call_sv(_PLfuse_callbacks[6],G_SCALAR); |
198 |
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SPAGAIN; |
199 |
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if(rv) |
200 |
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rv = POPi; |
201 |
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else |
202 |
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rv = 0; |
203 |
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FREETMPS; |
204 |
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LEAVE; |
205 |
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PUTBACK; |
206 |
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DEBUGf("rmdir end: %i %i\n",sp-PL_stack_base,rv); |
207 |
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return rv; |
208 |
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} |
209 |
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210 |
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int _PLfuse_symlink (const char *file, const char *new) { |
211 |
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int rv; |
212 |
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SV *rvsv; |
213 |
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char *rvstr; |
214 |
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dSP; |
215 |
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DEBUGf("symlink begin: %i\n",sp-PL_stack_base); |
216 |
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ENTER; |
217 |
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SAVETMPS; |
218 |
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PUSHMARK(SP); |
219 |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
220 |
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XPUSHs(sv_2mortal(newSVpv(new,0))); |
221 |
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PUTBACK; |
222 |
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rv = call_sv(_PLfuse_callbacks[7],G_SCALAR); |
223 |
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SPAGAIN; |
224 |
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if(rv) |
225 |
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rv = POPi; |
226 |
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else |
227 |
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rv = 0; |
228 |
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FREETMPS; |
229 |
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LEAVE; |
230 |
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PUTBACK; |
231 |
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DEBUGf("symlink end: %i\n",sp-PL_stack_base); |
232 |
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return rv; |
233 |
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} |
234 |
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235 |
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int _PLfuse_rename (const char *file, const char *new) { |
236 |
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int rv; |
237 |
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SV *rvsv; |
238 |
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char *rvstr; |
239 |
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dSP; |
240 |
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DEBUGf("rename begin: %i\n",sp-PL_stack_base); |
241 |
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ENTER; |
242 |
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SAVETMPS; |
243 |
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PUSHMARK(SP); |
244 |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
245 |
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XPUSHs(sv_2mortal(newSVpv(new,0))); |
246 |
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PUTBACK; |
247 |
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rv = call_sv(_PLfuse_callbacks[8],G_SCALAR); |
248 |
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SPAGAIN; |
249 |
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if(rv) |
250 |
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rv = POPi; |
251 |
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else |
252 |
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rv = 0; |
253 |
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FREETMPS; |
254 |
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LEAVE; |
255 |
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PUTBACK; |
256 |
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DEBUGf("rename end: %i\n",sp-PL_stack_base); |
257 |
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return rv; |
258 |
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} |
259 |
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260 |
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int _PLfuse_link (const char *file, const char *new) { |
261 |
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int rv; |
262 |
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SV *rvsv; |
263 |
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char *rvstr; |
264 |
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dSP; |
265 |
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DEBUGf("link begin: %i\n",sp-PL_stack_base); |
266 |
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ENTER; |
267 |
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SAVETMPS; |
268 |
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PUSHMARK(SP); |
269 |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
270 |
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XPUSHs(sv_2mortal(newSVpv(new,0))); |
271 |
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PUTBACK; |
272 |
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rv = call_sv(_PLfuse_callbacks[9],G_SCALAR); |
273 |
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SPAGAIN; |
274 |
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if(rv) |
275 |
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rv = POPi; |
276 |
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else |
277 |
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rv = 0; |
278 |
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FREETMPS; |
279 |
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LEAVE; |
280 |
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PUTBACK; |
281 |
|
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DEBUGf("link end: %i\n",sp-PL_stack_base); |
282 |
|
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return rv; |
283 |
|
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} |
284 |
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|
285 |
|
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int _PLfuse_chmod (const char *file, mode_t mode) { |
286 |
|
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int rv; |
287 |
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SV *rvsv; |
288 |
|
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char *rvstr; |
289 |
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dSP; |
290 |
|
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DEBUGf("chmod begin: %i\n",sp-PL_stack_base); |
291 |
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ENTER; |
292 |
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SAVETMPS; |
293 |
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PUSHMARK(SP); |
294 |
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
295 |
|
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XPUSHs(sv_2mortal(newSViv(mode))); |
296 |
|
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PUTBACK; |
297 |
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rv = call_sv(_PLfuse_callbacks[10],G_SCALAR); |
298 |
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SPAGAIN; |
299 |
|
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if(rv) |
300 |
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rv = POPi; |
301 |
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else |
302 |
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rv = 0; |
303 |
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FREETMPS; |
304 |
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LEAVE; |
305 |
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PUTBACK; |
306 |
|
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DEBUGf("chmod end: %i\n",sp-PL_stack_base); |
307 |
|
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return rv; |
308 |
|
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} |
309 |
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|
310 |
|
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int _PLfuse_chown (const char *file, uid_t uid, gid_t gid) { |
311 |
|
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int rv; |
312 |
|
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SV *rvsv; |
313 |
|
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char *rvstr; |
314 |
|
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dSP; |
315 |
|
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DEBUGf("chown begin: %i\n",sp-PL_stack_base); |
316 |
|
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ENTER; |
317 |
|
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SAVETMPS; |
318 |
|
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PUSHMARK(SP); |
319 |
|
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XPUSHs(sv_2mortal(newSVpv(file,0))); |
320 |
|
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XPUSHs(sv_2mortal(newSViv(uid))); |
321 |
|
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XPUSHs(sv_2mortal(newSViv(gid))); |
322 |
|
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PUTBACK; |
323 |
|
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rv = call_sv(_PLfuse_callbacks[11],G_SCALAR); |
324 |
|
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SPAGAIN; |
325 |
|
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if(rv) |
326 |
|
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rv = POPi; |
327 |
|
|
else |
328 |
|
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rv = 0; |
329 |
|
|
FREETMPS; |
330 |
|
|
LEAVE; |
331 |
|
|
PUTBACK; |
332 |
|
|
DEBUGf("chown end: %i\n",sp-PL_stack_base); |
333 |
|
|
return rv; |
334 |
|
|
} |
335 |
|
|
|
336 |
|
|
int _PLfuse_truncate (const char *file, off_t off) { |
337 |
|
|
int rv; |
338 |
|
|
SV *rvsv; |
339 |
|
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char *rvstr; |
340 |
|
|
dSP; |
341 |
|
|
DEBUGf("truncate begin: %i\n",sp-PL_stack_base); |
342 |
|
|
ENTER; |
343 |
|
|
SAVETMPS; |
344 |
|
|
PUSHMARK(SP); |
345 |
|
|
XPUSHs(sv_2mortal(newSVpv(file,0))); |
346 |
|
|
XPUSHs(sv_2mortal(newSViv(off))); |
347 |
|
|
PUTBACK; |
348 |
|
|
rv = call_sv(_PLfuse_callbacks[12],G_SCALAR); |
349 |
|
|
SPAGAIN; |
350 |
|
|
if(rv) |
351 |
|
|
rv = POPi; |
352 |
|
|
else |
353 |
|
|
rv = 0; |
354 |
|
|
FREETMPS; |
355 |
|
|
LEAVE; |
356 |
|
|
PUTBACK; |
357 |
|
|
DEBUGf("truncate end: %i\n",sp-PL_stack_base); |
358 |
|
|
return rv; |
359 |
|
|
} |
360 |
|
|
|
361 |
|
|
int _PLfuse_utime (const char *file, struct utimbuf *uti) { |
362 |
|
|
int rv; |
363 |
|
|
SV *rvsv; |
364 |
|
|
char *rvstr; |
365 |
|
|
dSP; |
366 |
|
|
DEBUGf("utime begin: %i\n",sp-PL_stack_base); |
367 |
|
|
ENTER; |
368 |
|
|
SAVETMPS; |
369 |
|
|
PUSHMARK(SP); |
370 |
|
|
XPUSHs(sv_2mortal(newSVpv(file,0))); |
371 |
|
|
XPUSHs(sv_2mortal(newSViv(uti->actime))); |
372 |
|
|
XPUSHs(sv_2mortal(newSViv(uti->modtime))); |
373 |
|
|
PUTBACK; |
374 |
|
|
rv = call_sv(_PLfuse_callbacks[13],G_SCALAR); |
375 |
|
|
SPAGAIN; |
376 |
|
|
if(rv) |
377 |
|
|
rv = POPi; |
378 |
|
|
else |
379 |
|
|
rv = 0; |
380 |
|
|
FREETMPS; |
381 |
|
|
LEAVE; |
382 |
|
|
PUTBACK; |
383 |
|
|
DEBUGf("utime end: %i\n",sp-PL_stack_base); |
384 |
|
|
return rv; |
385 |
|
|
} |
386 |
|
|
|
387 |
|
|
int _PLfuse_open (const char *file, int flags) { |
388 |
|
|
int rv; |
389 |
|
|
SV *rvsv; |
390 |
|
|
char *rvstr; |
391 |
|
|
dSP; |
392 |
|
|
DEBUGf("open begin: %i\n",sp-PL_stack_base); |
393 |
|
|
ENTER; |
394 |
|
|
SAVETMPS; |
395 |
|
|
PUSHMARK(SP); |
396 |
|
|
XPUSHs(sv_2mortal(newSVpv(file,0))); |
397 |
|
|
XPUSHs(sv_2mortal(newSViv(flags))); |
398 |
|
|
PUTBACK; |
399 |
|
|
rv = call_sv(_PLfuse_callbacks[14],G_SCALAR); |
400 |
|
|
SPAGAIN; |
401 |
|
|
if(rv) |
402 |
|
|
rv = POPi; |
403 |
|
|
else |
404 |
|
|
rv = 0; |
405 |
|
|
FREETMPS; |
406 |
|
|
LEAVE; |
407 |
|
|
PUTBACK; |
408 |
|
|
DEBUGf("open end: %i %i\n",sp-PL_stack_base,rv); |
409 |
|
|
return rv; |
410 |
|
|
} |
411 |
|
|
|
412 |
|
|
int _PLfuse_read (const char *file, char *buf, size_t buflen, off_t off) { |
413 |
|
|
int rv; |
414 |
|
|
char *rvstr; |
415 |
|
|
dSP; |
416 |
|
|
DEBUGf("read begin: %i\n",sp-PL_stack_base); |
417 |
|
|
ENTER; |
418 |
|
|
SAVETMPS; |
419 |
|
|
PUSHMARK(SP); |
420 |
|
|
XPUSHs(sv_2mortal(newSVpv(file,0))); |
421 |
|
|
XPUSHs(sv_2mortal(newSViv(buflen))); |
422 |
|
|
XPUSHs(sv_2mortal(newSViv(off))); |
423 |
|
|
PUTBACK; |
424 |
|
|
rv = call_sv(_PLfuse_callbacks[15],G_SCALAR); |
425 |
|
|
SPAGAIN; |
426 |
|
|
if(!rv) |
427 |
|
|
rv = -ENOENT; |
428 |
|
|
else { |
429 |
|
|
SV *mysv = POPs; |
430 |
|
|
if(SvTYPE(mysv) == SVt_NV || SvTYPE(mysv) == SVt_IV) |
431 |
|
|
rv = SvIV(mysv); |
432 |
|
|
else { |
433 |
|
|
if(SvPOK(mysv)) { |
434 |
|
|
rv = SvCUR(mysv); |
435 |
|
|
} else { |
436 |
|
|
rv = 0; |
437 |
|
|
} |
438 |
|
|
if(rv > buflen) |
439 |
|
|
croak("read() handler returned more than buflen! (%i > %i)",rv,buflen); |
440 |
|
|
if(rv) |
441 |
|
|
memcpy(buf,SvPV_nolen(mysv),rv); |
442 |
|
|
} |
443 |
|
|
} |
444 |
|
|
FREETMPS; |
445 |
|
|
LEAVE; |
446 |
|
|
PUTBACK; |
447 |
|
|
DEBUGf("read end: %i %i\n",sp-PL_stack_base,rv); |
448 |
|
|
return rv; |
449 |
|
|
} |
450 |
|
|
|
451 |
|
|
int _PLfuse_write (const char *file, const char *buf, size_t buflen, off_t off) { |
452 |
|
|
int rv; |
453 |
|
|
char *rvstr; |
454 |
|
|
dSP; |
455 |
|
|
DEBUGf("write begin: %i\n",sp-PL_stack_base); |
456 |
|
|
ENTER; |
457 |
|
|
SAVETMPS; |
458 |
|
|
PUSHMARK(SP); |
459 |
|
|
XPUSHs(sv_2mortal(newSVpv(file,0))); |
460 |
|
|
XPUSHs(sv_2mortal(newSVpvn(buf,buflen))); |
461 |
|
|
XPUSHs(sv_2mortal(newSViv(off))); |
462 |
|
|
PUTBACK; |
463 |
|
|
rv = call_sv(_PLfuse_callbacks[16],G_SCALAR); |
464 |
|
|
SPAGAIN; |
465 |
|
|
if(rv) |
466 |
|
|
rv = POPi; |
467 |
|
|
else |
468 |
|
|
rv = 0; |
469 |
|
|
FREETMPS; |
470 |
|
|
LEAVE; |
471 |
|
|
PUTBACK; |
472 |
|
|
DEBUGf("write end: %i\n",sp-PL_stack_base); |
473 |
|
|
return rv; |
474 |
|
|
} |
475 |
|
|
|
476 |
|
|
int _PLfuse_statfs (const char *file, struct statfs *st) { |
477 |
|
|
int rv; |
478 |
|
|
char *rvstr; |
479 |
|
|
dSP; |
480 |
|
|
DEBUGf("statfs begin: %i\n",sp-PL_stack_base); |
481 |
|
|
ENTER; |
482 |
|
|
SAVETMPS; |
483 |
|
|
PUSHMARK(SP); |
484 |
|
|
PUTBACK; |
485 |
|
|
rv = call_sv(_PLfuse_callbacks[17],G_ARRAY); |
486 |
|
|
SPAGAIN; |
487 |
|
|
if(rv > 5) { |
488 |
|
|
st->f_bsize = POPi; |
489 |
|
|
st->f_bfree = POPi; |
490 |
|
|
st->f_blocks = POPi; |
491 |
|
|
st->f_ffree = POPi; |
492 |
|
|
st->f_files = POPi; |
493 |
|
|
st->f_namelen = POPi; |
494 |
|
|
if(rv > 6) |
495 |
|
|
rv = POPi; |
496 |
|
|
else |
497 |
|
|
rv = 0; |
498 |
|
|
} else |
499 |
|
|
if(rv > 1) |
500 |
|
|
croak("inappropriate number of returned values from statfs"); |
501 |
|
|
else |
502 |
|
|
if(rv) |
503 |
|
|
rv = POPi; |
504 |
|
|
else |
505 |
|
|
rv = -ENOSYS; |
506 |
|
|
FREETMPS; |
507 |
|
|
LEAVE; |
508 |
|
|
PUTBACK; |
509 |
|
|
DEBUGf("statfs end: %i\n",sp-PL_stack_base); |
510 |
|
|
return rv; |
511 |
|
|
} |
512 |
|
|
|
513 |
|
|
struct fuse_operations _available_ops = { |
514 |
|
|
getattr: _PLfuse_getattr, |
515 |
|
|
_PLfuse_readlink, |
516 |
|
|
_PLfuse_getdir, |
517 |
|
|
_PLfuse_mknod, |
518 |
|
|
_PLfuse_mkdir, |
519 |
|
|
_PLfuse_unlink, |
520 |
|
|
_PLfuse_rmdir, |
521 |
|
|
_PLfuse_symlink, |
522 |
|
|
_PLfuse_rename, |
523 |
|
|
_PLfuse_link, |
524 |
|
|
_PLfuse_chmod, |
525 |
|
|
_PLfuse_chown, |
526 |
|
|
_PLfuse_truncate, |
527 |
|
|
_PLfuse_utime, |
528 |
|
|
_PLfuse_open, |
529 |
|
|
_PLfuse_read, |
530 |
|
|
_PLfuse_write, |
531 |
|
|
_PLfuse_statfs |
532 |
|
|
}; |
533 |
|
|
|
534 |
|
|
MODULE = Fuse PACKAGE = Fuse |
535 |
|
|
PROTOTYPES: DISABLE |
536 |
|
|
|
537 |
|
|
void |
538 |
|
|
perl_fuse_main(...) |
539 |
|
|
PREINIT: |
540 |
|
|
struct fuse_operations fops = {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL}; |
541 |
|
|
int i, fd, varnum = 0, debug, have_mnt; |
542 |
|
|
char *mountpoint; |
543 |
|
|
STRLEN n_a; |
544 |
|
|
STRLEN l; |
545 |
|
|
INIT: |
546 |
|
|
if(items != 20) { |
547 |
|
|
fprintf(stderr,"Perl<->C inconsistency or internal error\n"); |
548 |
|
|
XSRETURN_UNDEF; |
549 |
|
|
} |
550 |
|
|
CODE: |
551 |
|
|
debug = SvIV(ST(0)); |
552 |
|
|
mountpoint = SvPV_nolen(ST(1)); |
553 |
|
|
/* FIXME: reevaluate multithreading support when perl6 arrives */ |
554 |
|
|
for(i=0;i<18;i++) { |
555 |
|
|
SV *var = ST(i+2); |
556 |
|
|
if((var != &PL_sv_undef) && SvROK(var)) { |
557 |
|
|
if(SvTYPE(SvRV(var)) == SVt_PVCV) { |
558 |
|
|
void **tmp1 = (void**)&_available_ops, **tmp2 = (void**)&fops; |
559 |
|
|
tmp2[i] = tmp1[i]; |
560 |
|
|
_PLfuse_callbacks[i] = var; |
561 |
|
|
} else |
562 |
|
|
croak("arg is not a code reference!"); |
563 |
|
|
} |
564 |
|
|
} |
565 |
|
|
/* FIXME: need to pass fusermount arguments */ |
566 |
|
|
fd = fuse_mount(mountpoint,NULL); |
567 |
|
|
if(fd < 0) |
568 |
|
|
croak("could not mount fuse filesystem!"); |
569 |
|
|
fuse_loop(fuse_new(fd,debug ? "debug" : NULL,&fops)); |