c++ - Unlink Not Removing File -


trying understand why unlink isn't working (not removing file) in code down below. thing can imagine program thinks i'm still interacting file not unlinking since still in use. code meant copy of "rm"

void directorysearch(const char *dname) {         dir *dir;         struct dirent *ent;         if ((dir = opendir (dname)) != null)         {                 while ((ent = readdir (dir)) != null)                 {                          if ( ent->d_type!=dt_dir)                         {                                 //where crazy happens                                 printf ("%s\n", ent->d_name);                                 char path[path_max];                                 const char * d_name = ent->d_name;                                 unlink(path);                         }                         if ( ent->d_type==dt_dir && strcmp(ent->d_name, ".")!= 0 && strcmp(ent->d_name, "..") != 0)                         {                                 int path_length;                                 char path[path_max];                                 const char * d_name = ent->d_name;                                  path_length = snprintf (path, path_max, "%s/%s", dname, d_name);                                  directorysearch(path);                         }                 }                 closedir (dir);         }         else         {                 cout << "error "<< dname<< endl;         } }

edited unlink instead of remove, although both don't work...

you have declared path variable, not copied variable. that's problem. also, matter of course should examine return value unlink, , if less zero, examine errno determine exact nature of error. (typically permissions on no such file.)


Comments

Post a Comment

Popular posts from this blog

android - ConstraintLayout: Realign baseline constraint in case if dependent view visibility was set to GONE -

Image
is there way realign baseline constraint textview in case if dependent view visibility set gone? my layout code: <android.support.constraint.constraintlayout android:layout_width="match_parent" android:layout_height="wrap_content"> <textview android:id="@+id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="test title" android:textcolor="@color/black" android:textsize="24sp" app:layout_constraintleft_toleftof="parent" app:layout_constraintright_torightof="parent"/> <textview android:id="@+id/subtitle1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="subtitle 1" android:textsize="11sp" app:layout_constraintb...
Read more

Retrieving ETA (estimated time of arrival) with Google Distance Matrix API and public transit as transport mode -

Image
is possible retrieve eta google's distancematrix api (or alternative api). fyi, eta different duration, when using public transport. following example clarify request. when leave on friday @ 8.15 i'll able catch train @ 8.30 , arrive @ 9.00 am. google says duration 30 minutes. however, when leave on saturday @ 8.15 i'll able catch first train @ 9.00 , arrive @ 9.30 am. google still says duration 30 minutes, means ignore delay. google map supports functionality there api around giving me eta instead of duration. can see, distance-matrix' response no good. clarifying question little. eta estimated time of arrival , it's clear user wants know entire duration of transport (including waiting time public transport).
Read more

How to put a lock and transaction on table using spring 4 or above using jdbcTemplate and annotations like @Transactional? -

i trying put lock on table while writing on table , if happened in between roll-back . trying convert below code lock table test_g1 read; lock table test_g write; -- begin; start transaction; insert test_g1 values(143); insert test_g values(145); select * test_g1; select * test_g; rollback; select * test_g; unlock tables; how convert above code @transactional spring jdbctemplate code? @transactional(rollbackfor={dataaccessexception.class}) public void test(){ jdbctemplate.execute("insert test1 (id, nam) values (4, 'a')"); throw new dataaccessexception("error") { }; } here trying throw error, insert statement should rollback it's not happening . thanks edit-1 attaching code , doing in jdbcdaoimpl.java , mentioned problem comment above test() . app.java package com.cgiri.javabrains.spring4; import org.springframework.beans.factory.annotation.autowired; import org.springframework.context.applic...
Read more